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New Member

Not Advertising Additional IP Block

Hi Sir/Ma'am,

 

Hope someone can help me... My problem is that I added new ip block to my bgp to advertise. I have to cisco routers by the way... Both have same configuration but the other one is not advertising my newly added ip block...

I did use "prefix list" and "suppress-map" on my config...

 

if you need my config please tell me should i put here... Thank you in advance

 

1 ACCEPTED SOLUTION

Accepted Solutions

I do see  Implicit Withdraw: 

I do see  

Implicit Withdraw:             12

only thing i do see from your configuration missing is for Route-map

match list to be updated as below 


ip prefix-list RadiusPathPrepend seq 150 permit 43.247.6.0/24
ip prefix-list RadiusPathPrepend seq 200 permit 43.247.7.0/24
ip prefix-list RadiusPathPrepend seq 250 permit 43.247.8.0/24
ip prefix-list RadiusPathPrepend seq 300 permit 43.247.9.0/24

 

Kindly update it should work for you now

 

HTH

Sandy

20 REPLIES
Hall of Fame Super Silver

My first question is whether

My first question is whether there is an entry in your ip routing table that matches the new block that you ask BGP to advertise. If the answer to this is yes then I ask that you post the BGP configuration and also to post the output of show ip route from the router.

 

HTH

 

Rick

New Member

Hi Richard, Here's the config

Hi Richard,

 

Here's the config on both router... I just changed some value to X for some reason...

 

Thanks...

 

router ospf 1903
 log-adjacency-changes
 redistribute connected subnets
 redistribute static subnets route-map Fiber-Null
 network 103.x.x.x 0.0.0.15 area 0
 network 103.x.x.x 0.0.0.31 area 0
 network 103.x.x.x 0.0.0.15 area 0
 default-information originate always metric 10
!
router bgp 593xx
 no bgp fast-external-fallover
 no bgp log-neighbor-changes
 bgp maxas-limit 50
 neighbor Fiber-internal peer-group
 neighbor Fiber-internal remote-as 593xx
 neighbor Fiber-internal description Fiber internal BGP peers
 neighbor Fiber-internal password 7 121F441541190F5427
 neighbor Fiber-internal update-source Loopback0
 neighbor 103.x.x.x remote-as 55821
 neighbor 103.x.x.x description Y
 neighbor 103.x.x.x version 4
 neighbor 103.x.x.x peer-group Fiber-internal
 neighbor 103.x.x.x description IBGP-Fiber-NPEG-2
 neighbor 103.x.x.x remote-as 593xx
 neighbor 103.x.x.x description ZStaff
 neighbor 103.x.x.x version 4
 neighbor 121.x.x.x33 remote-as 17639
 neighbor 121.x.x.x33 description X
 neighbor 121.x.x.x33 version 4
 !
 address-family ipv4
 neighbor 103.x.x.x activate
 neighbor 103.x.x.x soft-reconfiguration inbound
 neighbor 103.x.x.x prefix-list FiberSpecific-Y out
 neighbor 103.x.x.x route-map YLocalPref in
 neighbor 103.x.x.x route-map YPathPrepend out
 neighbor 103.x.x.x filter-list 55 in
 neighbor 103.x.x.x filter-list 10 out
 neighbor 103.x.x.x activate
 neighbor 103.x.x.x activate
 neighbor 103.x.x.x send-community
 neighbor 103.x.x.x default-originate
 neighbor 103.x.x.x prefix-list ZStaff-prefix in
 neighbor 103.x.x.x route-map ZStaffLocalPref in
 neighbor 103.x.x.x maximum-prefix 5
 neighbor 103.x.x.x filter-list 80 out
 neighbor 121.x.x.x33 activate
 neighbor 121.x.x.x33 soft-reconfiguration inbound
 neighbor 121.x.x.x33 prefix-list FiberSpecific-X out
 neighbor 121.x.x.x33 route-map XLocalPref in
 neighbor 121.x.x.x33 route-map XPathPrepend out
 neighbor 121.x.x.x33 filter-list 50 in
 neighbor 121.x.x.x33 filter-list 10 out
 no auto-summary


no synchronization
 network 43.24x.x.x mask 255.255.252.0
 network 43.24x.x.x mask 255.255.255.0
 network 43.24x.x.x mask 255.255.255.0
 network 43.24x.x.x mask 255.255.255.0
 network 43.24x.x.x mask 255.255.255.0
 network 103.x.x.x mask 255.255.255.0
 network 103.x.x.x mask 255.255.255.0
 network 103.x.x.x mask 255.255.255.0
 aggregate-address 43.24x.x.x 255.255.252.0 suppress-map SuppressMap43.24x.x.x
 aggregate-address 103.x.x.x 255.255.252.0 suppress-map SuppressMap103.x.x.x
 exit-address-family
!         
ip classless
ip route 43.24x.x.x 255.255.252.0 Null0 tag 777
ip route 43.24x.x.x 255.255.255.0 Null0 tag 777
ip route 43.24x.x.x 255.255.255.0 Null0 tag 777
ip route 43.24x.x.x 255.255.255.0 Null0 tag 777
ip route 43.24x.x.x 255.255.255.0 Null0 tag 777
ip route 103.x.x.x 255.255.255.0 Null0 tag 777
ip route 103.x.x.x 255.255.255.0 Null0 tag 777
ip route 103.x.x.x 255.255.255.0 Null0 tag 777
ip route 103.x.x.x 255.255.255.240 103.2x.x.x
no ip http server
!         
ip as-path access-list 10 permit ^$
ip as-path access-list 10 permit ^(593xx_)+$
ip as-path access-list 50 permit .*
ip as-path access-list 51 permit ^17639_[0-9]*$
ip as-path access-list 55 permit .*


ip as-path access-list 56 permit ^55821_[0-9]*$
ip as-path access-list 80 permit ^$
!         
!         
ip prefix-list AllowSpecific-103.x.x.x description allow /22
ip prefix-list AllowSpecific-103.x.x.x seq 10 deny 103.x.x.x/24
ip prefix-list AllowSpecific-103.x.x.x seq 15 deny 103.x.x.x/24
ip prefix-list AllowSpecific-103.x.x.x seq 20 deny 103.x.x.x/24
ip prefix-list AllowSpecific-103.x.x.x seq 25 deny 103.x.x.x/24
ip prefix-list AllowSpecific-103.x.x.x seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list AllowSpecific-43.24x.x.x description allow /22                 
ip prefix-list AllowSpecific-43.24x.x.x seq 10 deny 43.24x.x.x/24
ip prefix-list AllowSpecific-43.24x.x.x seq 15 deny 43.24x.x.x/24
ip prefix-list AllowSpecific-43.24x.x.x seq 20 deny 43.24x.x.x/24
ip prefix-list AllowSpecific-43.24x.x.x seq 25 deny 43.24x.x.x/24
ip prefix-list AllowSpecific-43.24x.x.x seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list XPathPrepend description yun na
ip prefix-list XPathPrepend seq 10 permit 103.x.x.x/24
ip prefix-list XPathPrepend seq 20 permit 103.x.x.x/24
ip prefix-list XPathPrepend seq 30 permit 103.x.x.x/24
ip prefix-list XPathPrepend seq 100 deny 0.0.0.0/0 le 32
!         
ip prefix-list Fiber-Null description list of pull up routes
ip prefix-list Fiber-Null seq 5 deny 103.x.x.x/22
ip prefix-list Fiber-Null seq 6 deny 43.24x.x.x/22
ip prefix-list Fiber-Null seq 10 permit 0.0.0.0/0 le 32
!         
ip prefix-list FiberSpecific-X description Prefix Advertise to X
ip prefix-list FiberSpecific-X seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list FiberSpecific-Y seq 10 deny 103.x.x.x/24
ip prefix-list FiberSpecific-Y seq 20 deny 103.x.x.x/24
ip prefix-list FiberSpecific-Y seq 30 deny 103.x.x.x/24
ip prefix-list FiberSpecific-Y seq 40 deny 103.x.x.x/24
ip prefix-list FiberSpecific-Y seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list ZStaff-prefix description ZStaff prefixes
ip prefix-list ZStaff-prefix seq 5 permit 103.x.x.x/24
ip prefix-list ZStaff-prefix seq 100 deny 0.0.0.0/0 le 32
access-list 99 permit 103.x.x.x
access-list 99 permit 103.x.x.x 0.0.0.255
access-list 99 permit 103.x.x.x 0.0.0.255
access-list 99 permit 103.x.x.x 0.0.0.255
access-list 99 permit 103.x.x.x 0.0.0.255
access-list 110 permit ip host 61.9.0.41 any
access-list 110 deny   ip any any
!         
route-map ZStaffLocalPref permit 10
 match ip address prefix-list ZStaff-prefix
 set local-preference 210
!         
route-map ZStaffLocalPref permit 20

route-map SuppressMap43.24x.x.x permit 10
 match ip address prefix-list AllowSpecific-43.24x.x.x
!         
route-map XPathPrepend permit 10
 match ip address prefix-list XPathPrepend
 set as-path prepend 59322
!         
route-map XPathPrepend permit 20
!         
route-map Fiber-Null deny 10
 match tag 777
!         
route-map Fiber-Null permit 20
!         
route-map YLocalPref permit 10
 match as-path 56
 set local-preference 202
!         
route-map YLocalPref permit 20
!         
route-map XLocalPref permit 10
 match as-path 51
 set local-preference 202
!         
route-map XLocalPref permit 20
!         
route-map SuppressMap103.x.x.x permit 10
 match ip address prefix-list AllowSpecific-103.x.x.x

 

New Member

sh ip bgp neighbors 103.x.x

sh ip bgp neighbors 103.x.x.209 advertised-routes
BGP table version is 267057656, local router ID is 103.x.x.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 103.x.x.0/24  0.0.0.0                  0         32768 i
*> 103.x.x.0/24  0.0.0.0                  0         32768 i
*> 103.x.x.0/24  0.0.0.0                  0         32768 i

 

The 103.x.x.0/24 block is advertising but not the 43.24x.x.x/24 block

 

Hall of Fame Super Silver

The information that you

The information that you provide here is not useful to understand the problem. Your most recent post seems to reference a particular neighbor with whom you have this problem. But your conversion of the configuration details to 103.x.x.x prevents me from knowing which of the neighbors in the config is the one that has the problem.

 

HTH

 

Rick

New Member

Sorry if I did change the ip

Sorry if I did change the ip address to x.x.x for security purpose... The scenario was:

 

I have bgp peering with AS55821 and successfully advertising the ip block 103.225.x.x/22 . All was working properly. And then we want to add another ip block which is 43.247.x.x to the same bgp peering (AS55821). The configuration of both ip blocks are the same but it's not working...

 

Here's my actual configuration:

 

router ospf 1903
 log-adjacency-changes
 redistribute connected subnets
 redistribute static subnets route-map Fiber-Null
 network 103.225.6.0 0.0.0.15 area 0
 network 103.225.7.0 0.0.0.31 area 0
 default-information originate always metric 1
!
router bgp 5922
 no bgp log-neighbor-changes
 bgp maxas-limit 50
 neighbor Fiber-internal peer-group
 neighbor Fiber-internal remote-as 5922
 neighbor Fiber-internal description Fiber internal BGP peers
 neighbor Fiber-internal password 7 03021A09551D221C43
 neighbor Fiber-internal update-source Loopback0
 neighbor 103.16.17.209 remote-as 55821
 neighbor 103.16.17.209 description Radius                                     
 neighbor 103.16.17.209 version 4
 neighbor 103.225.6.1 peer-group Fiber-internal
 neighbor 103.225.6.1 description IBGP-Fiber-NPEG-1
 neighbor 121.58.19.33 remote-as 17639
 neighbor 121.58.19.33 description Comclark                                    
 neighbor 121.58.19.33 version 4
 !
 address-family ipv4
 neighbor 103.16.17.209 activate
 neighbor 103.16.17.209 soft-reconfiguration inbound
 neighbor 103.16.17.209 prefix-list FiberSpecific-Radius out
 neighbor 103.16.17.209 route-map RadiusLocalPref in
 neighbor 103.16.17.209 route-map RadiusPathPrepend out
 neighbor 103.16.17.209 filter-list 55 in
 neighbor 103.16.17.209 filter-list 10 out
 neighbor 103.225.6.1 activate
 neighbor 121.58.19.33 activate
 neighbor 121.58.19.33 soft-reconfiguration inbound
 neighbor 121.58.19.33 prefix-list FiberSpecific-Comclark out
 neighbor 121.58.19.33 route-map ComclarkLocalPref in
 neighbor 121.58.19.33 route-map ComclarkPathPrepend out
 neighbor 121.58.19.33 filter-list 50 in
 neighbor 121.58.19.33 filter-list 10 out
 no auto-summary
 no synchronization
 network 43.247.6.0 mask 255.255.252.0
 network 43.247.6.0 mask 255.255.255.0
 network 43.247.7.0 mask 255.255.255.0
 network 43.247.8.0 mask 255.255.255.0
 network 43.247.9.0 mask 255.255.255.0
 network 103.225.6.0 mask 255.255.252.0
 network 103.225.6.0 mask 255.255.255.0
 network 103.225.7.0 mask 255.255.255.0
 network 103.225.9.0 mask 255.255.255.0
 aggregate-address 43.247.6.0 255.255.252.0 suppress-map SuppressMap43.247.6.0
 aggregate-address 103.225.6.0 255.255.252.0 suppress-map SuppressMap103.225.6.0
 exit-address-family

ip classless
ip route 43.247.6.0 255.255.252.0 Null0 tag 777
ip route 43.247.6.0 255.255.255.0 Null0 tag 777
ip route 43.247.7.0 255.255.255.0 Null0 tag 777
ip route 43.247.8.0 255.255.255.0 Null0 tag 777
ip route 43.247.9.0 255.255.255.0 Null0 tag 777
ip route 103.225.6.0 255.255.252.0 Null0 tag 777
ip route 103.225.6.0 255.255.255.0 Null0 tag 777
ip route 103.225.7.0 255.255.255.0 Null0 tag 777
ip route 103.225.9.0 255.255.255.0 Null0 tag 777
no ip http server
!         
ip as-path access-list 10 permit ^$
ip as-path access-list 10 permit ^(59334_)+$
ip as-path access-list 50 permit .*
ip as-path access-list 51 permit ^17639_[0-9]*$
ip as-path access-list 55 permit .*
ip as-path access-list 56 permit ^55821_[0-9]*$
ip as-path access-list 56 permit _4134$
ip as-path access-list 56 permit _23456$
ip as-path access-list 56 permit _3491$
!         
!         
ip prefix-list AllowSpecific-103.225.6.0 description allow /22                 
ip prefix-list AllowSpecific-103.225.6.0 seq 10 deny 103.225.6.0/24
ip prefix-list AllowSpecific-103.225.6.0 seq 15 deny 103.225.7.0/24
ip prefix-list AllowSpecific-103.225.6.0 seq 20 deny 103.225.8.0/24
ip prefix-list AllowSpecific-103.225.6.0 seq 25 deny 103.225.9.0/24
ip prefix-list AllowSpecific-103.225.6.0 seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list AllowSpecific-43.247.6.0 description allow /22                 
ip prefix-list AllowSpecific-43.247.6.0 seq 10 deny 43.247.6.0/24
ip prefix-list AllowSpecific-43.247.6.0 seq 15 deny 43.247.7.0/24
ip prefix-list AllowSpecific-43.247.6.0 seq 20 deny 43.247.8.0/24
ip prefix-list AllowSpecific-43.247.6.0 seq 25 deny 43.247.9.0/24
ip prefix-list AllowSpecific-43.247.6.0 seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list Fiber-Null description list of pull up routes                    
ip prefix-list Fiber-Null seq 5 deny 103.225.6.0/22
ip prefix-list Fiber-Null seq 6 deny 43.247.6.0/22
ip prefix-list Fiber-Null seq 10 permit 0.0.0.0/0 le 32
!         
ip prefix-list FiberSpecific-Comclark seq 10 deny 103.225.6.0/24
ip prefix-list FiberSpecific-Comclark seq 15 deny 103.225.7.0/24
ip prefix-list FiberSpecific-Comclark seq 20 deny 103.225.8.0/24
ip prefix-list FiberSpecific-Comclark seq 25 deny 103.225.9.0/24
ip prefix-list FiberSpecific-Comclark seq 100 permit 0.0.0.0/0 le 32
!         
ip prefix-list FiberSpecific-Radius description Prefix Advertise to Radius
ip prefix-list FiberSpecific-Radius seq 100 permit 0.0.0.0/0 le 32


ip prefix-list RadiusPathPrepend description yun na
ip prefix-list RadiusPathPrepend seq 50 permit 103.225.9.0/24
ip prefix-list RadiusPathPrepend seq 100 deny 0.0.0.0/0 le 32
!         
ip prefix-list RadiusPathPrepend-2 description yun na
ip prefix-list RadiusPathPrepend-2 seq 50 permit 103.225.6.0/24
ip prefix-list RadiusPathPrepend-2 seq 60 permit 103.225.7.0/24
ip prefix-list RadiusPathPrepend-2 seq 100 deny 0.0.0.0/0 le 32
access-list 99 permit 103.16.17.210
access-list 99 permit 103.225.6.0 0.0.0.255
access-list 99 permit 103.225.7.0 0.0.0.255
access-list 99 permit 103.225.8.0 0.0.0.255
access-list 99 permit 103.225.9.0 0.0.0.255
access-list 110 permit ip host 61.9.101.1 any
access-list 110 deny   ip any any
!         
route-map ComclarkPthPrepend permit 10
!         
route-map SuppressMap43.247.6.0 permit 10
 match ip address prefix-list AllowSpecific-43.247.6.0
!         
route-map Fiber-Null deny 10
 match tag 777
!         
route-map Fiber-Null permit 20
!         
route-map RadiusPathPrepend permit 10
 match ip address prefix-list RadiusPathPrepend
!         
route-map RadiusPathPrepend permit 20
 match ip address prefix-list RadiusPathPrepend-2
 set as-path prepend 5922
!         
route-map RadiusLocalPref permit 10
 match as-path 56
 set local-preference 205
!         
route-map RadiusLocalPref permit 20
!         
route-map ComclarkLocalPref permit 10
 match as-path 51
 set local-preference 202
!         
route-map ComclarkLocalPref permit 20
!         
route-map SuppressMap103.225.6.0 permit 10
 match ip address prefix-list AllowSpecific-103.225.6.0

 

 

 

Hi , Can you share me

Hi ,

 Can you share me following output

1) show ip ospf database

2) show ip bgp

3) show ip bgp neigbhor 103.16.17.209 

4)  show ip bgp filter-list 10

5) show ip bgp rib-failure

 

Suspecting problem on network reach ability  for your new network statement . configure below statement without tag

ip route 43.247.6.0 255.255.252.0 Null0 tag 777
ip route 43.247.6.0 255.255.255.0 Null0 tag 777
ip route 43.247.7.0 255.255.255.0 Null0 tag 777
ip route 43.247.8.0 255.255.255.0 Null0 tag 777
ip route 43.247.9.0 255.255.255.0 Null0 tag 777

 

HTH

Sandy

New Member

Hi, Below are the results for

Hi,

 

Below are the results for the following commands:

 

sh ip ospf database

            OSPF Router with ID (103.225.6.2) (Process ID 1903)

        Router Link States (Area 0)

Link ID         ADV Router      Age         Seq#       Checksum Link count
103.225.6.1    103.225.6.1    1363        0x8000160D 0x00F644 3
103.225.6.2    103.225.6.2    1092        0x80000026 0x00B913 2
103.225.6.3    103.225.6.3    985         0x80001609 0x0019B5 2

        Net Link States (Area 0)

Link ID         ADV Router      Age         Seq#       Checksum
103.225.7.1    103.225.6.1    1363        0x80000025 0x006C98

        Type-5 AS External Link States

Link ID         ADV Router      Age         Seq#       Checksum Tag
0.0.0.0         103.225.6.1    320         0x80001607 0x00CDDB 1903
0.0.0.0         103.225.6.2    1092        0x80001603 0x007540 1903
103.16.17.208  103.225.6.2    1092        0x80001603 0x003EEE 0
103.225.6.16   103.225.6.1    320         0x800003E4 0x0003D9 0
103.225.6.32   103.225.6.1    320         0x800003E4 0x00626A 0
103.225.6.48   103.225.6.1    320         0x800003E4 0x00C1FA 0
103.225.6.64   103.225.6.1    578         0x80000006 0x00186E 0
103.225.6.224  103.225.6.1    323         0x800003E4 0x00DA31 0
103.225.7.160  103.225.6.1    323         0x800003E4 0x00F169 0
103.225.7.208  103.225.6.1    323         0x800003E4 0x00B856 0
103.225.7.212  103.225.6.1    323         0x800003E4 0x00907A 0
103.225.7.216  103.225.6.1    323         0x800003E4 0x00689E 0
103.225.7.220  103.225.6.1    323         0x80000334 0x00A112 0
103.225.7.240  103.225.6.1    323         0x800003E4 0x005F93 0
103.225.7.252  103.225.6.1    323         0x800003E4 0x00FEE3 0
103.225.9.0    103.225.6.1    323         0x800003E4 0x0022D7 0
103.225.9.48   103.225.6.1    323         0x800004B9 0x00F3EF 0
103.225.9.240  103.225.6.1    323         0x800003E4 0x0049A7 0
121.58.194.32   103.225.6.1    323         0x800010FB 0x005D3A 0
175.158.106.56  103.225.6.2    1094        0x800001D8 0x005A0D 0
202.176.199.133 103.225.6.2    1094        0x80001374 0x00AB36 0


===================

 

show ip bgp neig 103.16.17.209    
BGP neighbor is 103.16.17.209,  remote AS 55821, external link
 Description: Radius                                     
  BGP version 4, remote router ID 103.16.169.186
  BGP state = Established, up for 19:50:10
  Last read 00:00:19, hold time is 180, keepalive interval is 60 seconds
  Neighbor capabilities:
    Route refresh: advertised and received(old & new)
    Address family IPv4 Unicast: advertised and received
  Message statistics:
    InQ depth is 0
    OutQ depth is 0
                         Sent       Rcvd
    Opens:                  1          1
    Notifications:          0          0
    Updates:                8     391986
    Keepalives:          1193          2
    Route Refresh:          0          0
    Total:               1202     391989
  Default minimum time between advertisement runs is 30 seconds

 For address family: IPv4 Unicast
  BGP table version 2385077, neighbor version 2385077
  Index 2, Offset 0, Mask 0x4
  Inbound soft reconfiguration allowed
  Inbound path policy configured
  Outbound path policy configured
  Outgoing update prefix filter list is FiberSpecific-Radius
  Incoming update AS path filter list is 55
  Outgoing update AS path filter list is 10
  Route map for incoming advertisements is RadiusLocalPref
  Route map for outgoing advertisements is RadiusPathPrepend
                                 Sent       Rcvd
  Prefix activity:               ----       ----
    Prefixes Current:               3     508098 (Consumes 25423200 bytes)
    Prefixes Total:                12    1926191
    Implicit Withdraw:              9    1394168
    Explicit Withdraw:              0      23925
    Used as bestpath:             n/a     436896
    Used as multipath:            n/a          0
    Saved (soft-reconfig):        n/a      21552 (Consumes 1034496 bytes)

                                   Outbound    Inbound
  Local Policy Denied Prefixes:    --------    -------
    route-map:                           17          0
    filter-list:                     654351          0
    prefix-list                           6          0
    Suppressed duplicate:                 0     128126
    AS_PATH loop:                       n/a          7
    Bestpath from this peer:        2954215        n/a
    Suppressed due to dampening:         20        n/a
    Total:                          3608609     128133
  Number of NLRIs in the update sent: max 2, min 0

Connections established 1; dropped 0
  Last reset never
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 103.16.17.210, Local port: 179
Foreign host: 103.16.17.209, Foreign port: 13799
          
Enqueued packets for retransmit: 0, input: 0  mis-ordered: 0 (0 bytes)
          
Event Timers (current time is 0x44202F0):
Timer          Starts    Wakeups            Next
Retrans          1198          1             0x0
TimeWait            0          0             0x0
AckHold         12426       1827             0x0
SendWnd             0          0             0x0
KeepAlive           1          0             0x0
GiveUp              0          0             0x0
PmtuAger            0          0             0x0
DeadWait            0          0             0x0
          
iss:  786668411  snduna:  786691564  sndnxt:  786691564     sndwnd:  31628
irs: 3197216748  rcvnxt: 3227471037  rcvwnd:      16032  delrcvwnd:    352
          
SRTT: 300 ms, RTTO: 303 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 404 ms, ACK hold: 200 ms
Flags: passive open, nagle, gen tcbs
          
Datagrams (max data segment is 1460 bytes):
Rcvd: 23071 (out of order: 6), with data: 21886, total data bytes: 30254288
Sent: 22548 (retransmit: 1, fastretransmit: 0), with data: 1196, total data bytes: 23152

======================


show ip bgp filter-list 10
BGP table version is 2386911, local router ID is 103.225.6.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
s> 43.247.6.0/24   0.0.0.0                  0         32768 i
s i                 103.225.6.1             0    100      0 i
*> 43.247.6.0/22   0.0.0.0                  0         32768 i
*                   0.0.0.0                            32768 i
* i                 103.225.6.1             0    100      0 i
s> 43.247.7.0/24   0.0.0.0                  0         32768 i
s i                 103.225.6.1             0    100      0 i
s> 43.247.8.0/24   0.0.0.0                  0         32768 i
s i                 103.225.6.1             0    100      0 i
s> 43.247.9.0/24   0.0.0.0                  0         32768 i
s i                 103.225.6.1             0    100      0 i
* i103.225.6.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i
*> 103.225.6.0/22  0.0.0.0                            32768 i
* i                 103.225.6.1             0    100      0 i
* i103.225.7.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i
*>i103.225.8.0/24  103.225.7.218           0    210      0 59334 i
* i103.225.9.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i


=======================


show ip bgp rib-failure
Network            Next Hop                      RIB-failure   RIB-NH Matches

 

Hi , Remove tag from your

Hi ,

 Remove tag from your Null 0 and try to advertise . And let me with show ip bgp

table 

no ip route 43.247.6.0 255.255.252.0 Null0 tag 777
no ip route 43.247.6.0 255.255.255.0 Null0 tag 777
no ip route 43.247.7.0 255.255.255.0 Null0 tag 777
no ip route 43.247.8.0 255.255.255.0 Null0 tag 777
no ip route 43.247.9.0 255.255.255.0 Null0 tag 777

ip route 43.247.6.0 255.255.252.0 Null0 
ip route 43.247.6.0 255.255.255.0 Null0 
ip route 43.247.7.0 255.255.255.0 Null0 
ip route 43.247.8.0 255.255.255.0 Null0 
ip route 43.247.9.0 255.255.255.0 Null0

HTH

Sandy

 

New Member

Hi Sir, I did remove the

Hi Sir,

 

I did remove the following tag but still nothing happens... :(

 

sh ip bgp | include 43.247.6.0
*> 43.247.6.0/24   0.0.0.0                  0         32768 i
*> 43.247.6.0/22   0.0.0.0                  0         32768 i
#sh ip bgp | include 43.247.7.0
*> 43.247.7.0/24   0.0.0.0                  0         32768 i
#sh ip bgp | include 43.247.8.0
*> 43.247.8.0/24   0.0.0.0                  0         32768 i
#sh ip bgp | include 43.247.9.0
*> 43.247.9.0/24   0.0.0.0                  0         32768 i

 

 

 

Hi , Can you join this

Hi ,

 Can you join this webex meetings for online support 

https://meetings.webex.com/collabs/meetings/join?uuid=MEFV59M1BOK2CMKNYQ4ZRVO1YI-512H

 

 

New Member

Hi Sir, My browser doesn't

Hi Sir,

 

My browser doesn't support java right now... That's why I am not able to connect to your invitation...

Okay , I have opened the

Okay , I have opened the meeting , you can join whenever u want

 Please share me below outputs again

sh ip bgp neighbors 103.x.x.209 advertised-routes

show ip bgp neig 103.16.17.209

show ip bgp filter-list 10

 

HTH

Sandy

New Member

Hi Sir, here's result: sh ip

Hi Sir,

 

here's result:

 

sh ip bgp neighbors 103.16.17.209 advertised-routes
BGP table version is 2870893, local router ID is 103.225.6.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 103.225.6.0/24  0.0.0.0                  0         32768 i
*> 103.225.7.0/24  0.0.0.0                  0         32768 i
*> 103.225.9.0/24  0.0.0.0                  0         32768 i

=============

 

sh ip bgp neighbors 103.16.17.209                   
BGP neighbor is 103.16.17.209,  remote AS 55821, external link
 Description: Radius                                     
  BGP version 4, remote router ID 103.16.169.186
  BGP state = Established, up for 23:17:59
  Last read 00:00:00, hold time is 180, keepalive interval is 60 seconds
  Neighbor capabilities:
    Route refresh: advertised and received(old & new)
    Address family IPv4 Unicast: advertised and received
  Message statistics:
    InQ depth is 23
    OutQ depth is 0
                         Sent       Rcvd
    Opens:                  1          1
    Notifications:          0          0
    Updates:               10     475031
    Keepalives:          1400          2
    Route Refresh:          0          0
    Total:               1411     475034
  Default minimum time between advertisement runs is 30 seconds

 For address family: IPv4 Unicast
  BGP table version 2871222, neighbor version 2871142
  Index 2, Offset 0, Mask 0x4
  Inbound soft reconfiguration allowed
  Inbound path policy configured
  Outbound path policy configured
  Outgoing update prefix filter list is FiberSpecific-Radius
  Incoming update AS path filter list is 55
  Outgoing update AS path filter list is 10
  Route map for incoming advertisements is RadiusLocalPref
  Route map for outgoing advertisements is RadiusPathPrepend
                                 Sent       Rcvd
  Prefix activity:               ----       ----
    Prefixes Current:               3     508129 (Consumes 25423296 bytes)
    Prefixes Total:                15    2314001
    Implicit Withdraw:             12    1771630
    Explicit Withdraw:              0      34242
    Used as bestpath:             n/a     435652
    Used as multipath:            n/a          0
    Saved (soft-reconfig):        n/a      21531 (Consumes 1033488 bytes)

Outbound    Inbound
  Local Policy Denied Prefixes:    --------    -------
    route-map:                           28          0
    filter-list:                     820355          0
    prefix-list                          20          0
    Suppressed duplicate:                 0     157471
    AS_PATH loop:                       n/a          7
    Bestpath from this peer:        3714868        n/a
    Suppressed due to dampening:         20        n/a
    Total:                          4535291     157478
  Number of NLRIs in the update sent: max 2, min 0

  Connections established 1; dropped 0
  Last reset never
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 103.16.17.210, Local port: 179
Foreign host: 103.16.17.209, Foreign port: 13799

Enqueued packets for retransmit: 0, input: 0  mis-ordered: 0 (0 bytes)

Event Timers (current time is 0x5002EFC):
Timer          Starts    Wakeups            Next
Retrans          1407          1             0x0
TimeWait            0          0             0x0
AckHold         15191       2100             0x0
SendWnd             0          0             0x0
KeepAlive           1          0             0x0
GiveUp              0          0             0x0
PmtuAger            0          0             0x0
DeadWait            0          0             0x0

iss:  786668411  snduna:  786695626  sndnxt:  786695626     sndwnd:  31970
irs: 3197216748  rcvnxt: 3233753908  rcvwnd:      16089  delrcvwnd:    295

SRTT: 305 ms, RTTO: 343 ms, RTV: 38 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 404 ms, ACK hold: 200 ms
Flags: passive open, nagle, gen tcbs
          
Datagrams (max data segment is 1460 bytes):
Rcvd: 27795 (out of order: 6), with data: 26400, total data bytes: 36537159
Sent: 27131 (retransmit: 1, fastretransmit: 0), with data: 1405, total data bytes: 27214

=====================

show ip bgp filter-list 10
BGP table version is 2871652, local router ID is 103.225.6.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 43.247.6.0/24   0.0.0.0                  0         32768 i
* i                 103.225.6.1             0    100      0 i
*> 43.247.6.0/22   0.0.0.0                  0         32768 i
*                   0.0.0.0                            32768 i
* i                 103.225.6.1             0    100      0 i
*> 43.247.7.0/24   0.0.0.0                  0         32768 i
* i                 103.225.6.1             0    100      0 i
*> 43.247.8.0/24   0.0.0.0                  0         32768 i
* i                 103.225.6.1             0    100      0 i
*> 43.247.9.0/24   0.0.0.0                  0         32768 i
* i                 103.225.6.1             0    100      0 i
* i103.225.6.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i
*> 103.225.6.0/22  0.0.0.0                            32768 i
* i                 103.225.6.1             0    100      0 i
* i103.225.7.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i
*>i103.225.8.0/24  103.225.7.218           0    210      0 59334 i
* i103.225.9.0/24  103.225.6.1             0    100      0 i
*>                  0.0.0.0                  0         32768 i

 

 

 

 

I do see  Implicit Withdraw: 

I do see  

Implicit Withdraw:             12

only thing i do see from your configuration missing is for Route-map

match list to be updated as below 


ip prefix-list RadiusPathPrepend seq 150 permit 43.247.6.0/24
ip prefix-list RadiusPathPrepend seq 200 permit 43.247.7.0/24
ip prefix-list RadiusPathPrepend seq 250 permit 43.247.8.0/24
ip prefix-list RadiusPathPrepend seq 300 permit 43.247.9.0/24

 

Kindly update it should work for you now

 

HTH

Sandy

New Member

Thank you so much sir :)

Thank you so much sir :)

Is this working for you now ?

Is this working for you now ?? Share me below 

sh ip bgp neighbors 103.x.x.209 advertised-routes

 

HTH

Sandy

Kindly rate for helpful post

New Member

sh ip bgp neighbors 103.16.17

sh ip bgp neighbors 103.16.17.209 advertised-routes
BGP table version is 3183776, local router ID is 103.225.6.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 43.247.6.0/24   0.0.0.0                  0         32768 i
*> 43.247.8.0/24   0.0.0.0                  0         32768 i
*> 43.247.9.0/24   0.0.0.0                  0         32768 i
*> 103.225.6.0/24  0.0.0.0                  0         32768 i
*> 103.225.7.0/24  0.0.0.0                  0         32768 i
*> 103.225.9.0/24  0.0.0.0                  0         32768 i

 

New Member

Why is it that this did not

Why is it that this did not work?

 

neighbor 103.16.17.209 prefix-list FiberSpecific-Radius out

 

ip prefix-list FiberSpecific-Radius description Prefix Advertise to Radius
ip prefix-list FiberSpecific-Radius seq 100 permit 0.0.0.0/0 le 32

 

 Hi ,  if you look at below

 Hi , 

 if you look at below output along with AS Path Filter list & Prefix List , you have also route-map for AS Prepend . On Route-map you don't have matching statement .

There by you have implicit withdrawn of 12 routes 

  Implicit Withdraw:             12    1771630 

to match it i have given above configuration 

 Inbound path policy configured
  Outbound path policy configured
  Outgoing update prefix filter list is FiberSpecific-Radius
  Incoming update AS path filter list is 55
  Outgoing update AS path filter list is 10
  Route map for incoming advertisements is RadiusLocalPref
  Route map for outgoing advertisements is RadiusPathPrepend

 

http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5816-bgpfaq-5816.html#six

Q. How can I verify if a BGP router announces its BGP networks and propagates them to the global BGP mesh?

 

A. Use these commands in order to check if the IP blocks are announced to the directly connected ISP:

  • The show ip bgp neighbors [address] advertised-routes command shows which messages are being sent.

  • The show ip bgp neighbors [address] routes command shows which messages are being received.

Note: The show ip bgp neighbors [address] advertise-routes command does not take into account any outbound policies you might have applied. In future Cisco IOS software releases, the command output will be changed to reflect the outbound policies. If there are two alternate paths to a destination, BGP always uses the best route to advertise.

HTH

Sandy

Kindly rate for helpful post 

New Member

Hi Sir, Can you explain to me

Hi Sir,

 

Can you explain to me what happen?

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