10-15-2008 06:01 AM - edited 03-03-2019 11:56 PM
We have one router3745 which is connected the all wan links .Out of two ethernet port,one port is connected to lacal lan and second one is connected to Core switch 4509 under vlan 246 .Fix is in between Core switch4509 and Router3745.Layer 2 connectivty is between Core switch 4509 and router 3745.
Now we are planing the replace old router to new two routers with HSRP.Setup is like this
1.All the wan links is connected to the active routrer.Active router gi0/0 is connected to the local lan and gi 0/1 is connected to the Coreswitch under vlan 246.BAsically HSRP is designed for the lan redudancy.
2.Standby router gi0/0 is connected to the local lan and gi 0/1 is connected to the Coreswitch under vlan 246
3.If i remove the active router gi0/0 port from lan ,HSRP to be work ie,standby router to be active...But its not happening what would be the problem?
First (HSRP active) Router Gigabit interface configurations
Interface GigabitEthernet0/0
description ****
ip address 10.12.x.x x.x.x.x secondary
ip address 10.9.x.x. x.x.x.x
standby 70 ip 10.9.x.x
standby 70 priority 120
standby 70 preempt
no ip redirects
duplex auto
speed auto
interface GigabitEthernet0/1
description *****
ip address 172.16.x.x x.x.x.x
ip nat inside
speed auto
half-duplex
end
Second (HSRP standby) Router Gigabit interface configurations
interface GigabitEthernet0/0
description *****
ip address 10.12.x.x x.x.x.x secondary
ip address 10.9.x.x x.x.x.x
standby 70 ip 10.9.x.x
standby 70 preempt
no ip redirects
duplex auto
speed auto
interface Gig0/1
description *****
ip address 172.16.x.x x.x.x.x
ip nat inside
speed auto
half-duplex
Routing Configuration
First (HSRP active and stand by) Router's routing configuration
router eigrp 100
passive-interface Dialer4
network 10.9.x.x 0.0.0.127
network 30.x.x.x 0 0.0.0.3
network 172.x.x.x 0.0.0.3
distribute-list prefix HCIL in
no auto-summary
eigrp stub connected summary
!
router ospf 100
log-adjacency-changes
redistribute static subnets
redistribute eigrp 100 subnets route-map EIGRP-OSPF
passive-interface Serial2/0
passive-interface Serial2/3
network 10.9.x.x 0.0.0.63 area 0
network 10.12.x.x 0.0.0.63 area 0
network 172.16.x.x 0.0.0.7 area 0
network 172.20.x.x 0.0.0.0 area 0
network 202.177.x.x 0.0.0.0 area 0
!
router rip
version 2
network 10.0.0.0
network 172.16.0.0
10-15-2008 06:45 AM
Please provide the show stand output from both routers, before and after removing g0/0 from the active router.
___
Edison.
10-15-2008 10:16 PM
Pl find the out put of active router after removing
route#
*Oct 14 22:23:11.394: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 172.21.1.13 (Serial2/3) is resync: peer graceful-restartsh standby
GigabitEthernet0/0 - Group 70
State is Init (interface down)
3 state changes, last state change 00:01:23
Virtual IP address is 10.9.x.x
Active virtual MAC address is unknown
Local virtual MAC address is 0000.0c07.ac46 (v1 default)
Hello time 3 sec, hold time 10 sec
Preemption enabled
Active router is unknown
Standby router is unknown
Priority 120 (configured 120)
IP redundancy name is "hsrp-Gi0/0-70" (default)
CorpFTSPRM#
*Oct 14 22:23:20.377: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 172.21.1.13 (Serial2/3) is resync: peer graceful-restart
Oct 15 00:20:42.053: %IP-4-DUPADDR: Duplicate address 10.12.148.67 on GigabitEthernet0/0, sourced by 001f.6cf8.f3b0
*Oct 15 00:20:46.497: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 172.21.1.13 (Serial2/3) is resync: peer
graceful-restart
*Oct 15 02:11:46.017: %OSPF-4-DUP_RTRID_NBR: OSPF detected duplicate router-id 202.177.133.7 from 172.16.246.5 on interface GigabitEthernet0/1
*Oct 15 02:11:51.720: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 172.21.1.13 (Serial2/3) is resync: peer graceful-restart
before removing
route#sh standby
GigabitEthernet0/0 - Group 70
State is Active
2 state changes, last state change 00:13:54
Virtual IP address is 10.9.x.x
Active virtual MAC address is 0000.0c07.ac46
Local virtual MAC address is 0000.0c07.ac46 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.504 secs
Preemption enabled
Active router is local
Standby router is 10.9.x.x, priority 100 (expires in 7.492 sec)
Priority 120 (configured 120)
IP redundancy name is "hsrp-Gi0/0-70" (default)
Stand by router before removing
route1#sh standby
GigabitEthernet0/0 - Group 70
State is Standby
7 state changes, last state change 1d07h
Virtual IP address is 10.9.x.x
Active virtual MAC address is 0000.0c07.ac46
Local virtual MAC address is 0000.0c07.ac46 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.916 secs
Preemption enabled
Active router is 10.9.x.x, priority 120 (expires in 9.032 sec)
Standby router is local
Priority 100 (default 100)
I dont have the after removing the gi0/0 out for stanby router
Pl do the needful
10-16-2008 05:28 AM
1) What's with all those duplicate address error messages that I see from your log?
2) The show stand command on the standby router displays that the state hasn't changed over 1 day and 7 hours while on the active router, it changed 13 minutes and 54 seconds ago. Which tells me the HSRP hellos aren't being exchanged between these routers.
Please explain the physical connectivity on these routers and make sure you aren't filtering multicast on this segment.
__
Edison.
10-16-2008 12:14 AM
Hi,
In which state the second router is when the 1st router is down.
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