08-21-2015 10:03 AM - edited 03-08-2019 01:27 AM
Hi,
I am having trouble with GLBP when we forced a failover to the 2nd router. First router is running normally but after adding the 2nd router and tried a failover, my core switch is not reachable. Is this a static IP issue or GLBP issue? I can ping the core switch from the 2nd router; all other VLAN is not reachable outside of the site
virtual GLBP address is 10.1.1.50
static configuration (single core switch only)
ip route 0.0.0.0 0.0.0.0 10.1.1.50
gig0/21
switchport access vlan 5
switchport mode access
logging event status
speed 1000
duplex full
spanning-tree portfast
gig0/21
switchport access vlan 5
switchport mode access
logging event status
speed 1000
duplex full
spanning-tree portfast
GLBP:
router1
gig0/1
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.5.1.65 255.255.255.240
glbp 1 ip 10.1.1.50
glbp 1 timers 5 15
glbp 1 priority 110
glbp 1 preempt
glbp 1 weighting track 100 decrement 20
glbp 1 weighting track 101 decrement 20
router2
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.1.1.67 255.255.255.240
glbp 1 ip 10.1.1.50
glbp 1 timers 5 15
glbp 1 priority 105
glbp 1 preempt
glbp 1 weighting track 100 decrement 20
glbp 1 weighting track 101 decrement 20
08-23-2015 03:58 PM
Hi,
Could be routing/subnetting issue. Can you make sure that your IP addressing is correct? I see that the primary address of the Core Routers are in different network.
router1:
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.5.1.65 255.255.255.240
router2:
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.1.1.67 255.255.255.240
What's the Core Switch IP Address? Is the core switch in the same subnet with VIP?
08-27-2015 10:44 PM
sorry for the typo :)
router1:
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.1.1.65 255.255.255.240
router2:
ip address x.x.x.x. 255.255.255.252 secondary
ip address 10.1.1.67 255.255.255.240
core switch IP is 10.1.1.66; yes they belong to the same subnet
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