05-08-2012 10:26 PM - edited 03-04-2019 04:18 PM
Hi,
In my location we have one cisco 1841 router with two ISP(BSNL&Tulip) is connected.
Both links are mpls and configured in BGP protocol.
LAN IP : 10.10.110.0/23
WAN IP : 192.168.3.56/30(Bsnl Link)
WAN IP : 10.237.69.36/30(Tulip Link)
Now all systems are working through Tulip link.there is one DVR connectivity and we configured one IP is 10.10.110.111
My Requirement:
We want all traffic should go to Tulip Link and DVR traffic should go to BSNL link only.
In my HO router i given reverse traffic for DVR to BSNL link.
My configuration:
interface FastEthernet0/0
description ***** Branch-LAN *****$ETH-LAN$
ip address 10.10.110.100 255.255.254.0
duplex auto
speed auto
keepalive 1000
!
interface FastEthernet0/1
description $$TULIP-WAN$$
bandwidth 512
ip address 10.237.69.36 255.255.255.252
ip accounting output-packets
duplex auto
speed auto
!
interface BRI0/0/0
no ip address
encapsulation hdlc
shutdown
isdn switch-type basic-net3
isdn point-to-point-setup
!
interface Serial0/1/0
description #### BSNL WAN 2MBPS ####
ip address 192.168.3.56 255.255.255.252
ip accounting output-packets
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip virtual-reassembly
encapsulation ppp
load-interval 30
no fair-queue
!
router bgp 68001
no synchronization
bgp log-neighbor-changes
network 10.10.110.0 mask 255.255.254.0
neighbor 10.237.69.35 remote-as 65500
neighbor 10.237.69.35 description ***TULIP WAN***
neighbor 10.237.69.35 soft-reconfiguration inbound
neighbor 192.168.3.57 remote-as 9829
neighbor 192.168.3.57 soft-reconfiguration inbound
no auto-summary
it is possible in BGP??
If possible means kindly tell me how to configure??
05-08-2012 10:30 PM
You need to advertise your more specific DVR route to BSNL and not advertise it to Tulip. It is for traffic incoming to your DVR location. Another direction must be controlled by PBR for example. Or you may use OER/PfR.
05-08-2012 10:45 PM
I don't know how to configure ??
pls help me.
05-09-2012 03:58 AM
I'll try.
First of all you need to create static IP route for your DVR like this:
ip route 10.10.110.111 255.255.255.255 Fa0/0
We need it to be in BGP table to advertise.
Next. Add network statement into BGP.
router bgp 68001
network 10.10.110.111 mask 255.255.255.255
Then you need to filter this network out of advertising to Tulip.
ip prefix-list DVR 10.10.110.111/32
route-map TO_TULIP deny 10
match ip address prefix DVR
route-map TO_TULIP permit 20
router bgp 68001
neighbor 10.237.69.35 route-map TO_TULIP out
And softly reset Tulip session (like clear ip bgp * out). Now your DVR is announced through BSNL but not through Tulip. Your HO router will get routes and choose the most specific one (/32), which comes from BSNL.
Next stage. You need to send DVR's traffic to BSNL.
ip access-list standard DVR
permit host 10.10.110.111
route-map PBR
match ip access-group DVR
set ip next-hop 192.168.3.57
interface Fa0/0
ip policy route-map PBR
Now your DVR's traffic will come to BSNL. Hope this helps and hope I didn't forget something importaint.
05-09-2012 10:19 PM
Thanks for your reply.
static route is needed??
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: