HSRP on Routers connected to 4006

[chazk1]

I currently have 2 x Cisco 4500 Routers connected to the same Catalyst 4006 switch.

We are considering enabling HSRP on the Routers for resilience.

Is there anything that needs to be configured on the two switch ports to ensure this works correctly ?

The Routers have 10MB/Half Duplex Ethernet modules.

The switch is using v6.2(1) software.
One of the Routers is using v11.2(11), the other v11.2(18)

Thanks for any advice.

 

[IPKONFIG]

HSRP is a pretty nice protocol. I would first suggest that you make sure your IOS in your routers are the same. This will help troubleshooting any IOS bug issues. After that, you really don't need to do anything special. HSRP is pretty simple. Here's a sample of what your wanting to do.

standby 99 priority 100 preempt
standby 99 ip 10.20.30.40

99 is the HSRP group number, the priority is to let you know which router will be the active and which router will be the standby. The higher the priority number that would indicate the active router. The standby IP would be the virtual address between your two routers. I would use .1 and make each 4000 router .2 & .3 respectively. Have fun.

 

[IPKONFIG]

Sorry, I forgot the initail question. No the switch ports don't need anything specific done to them. I would hard code them to 10mb if that's what your router interfaces are. That's about all you really need to do.

 

[chazk1]

Thanks for that.

Tried implementing HSRP and it failed.

When pinging remotely could get a response from each Routers address .252 and .253 but not the virtual .254

When pinging from the remote Router could ping a unix server on this LAN but no NT Servers.

All Servers/Clients are configured with a default gateway of .254 on this LAN.

Any ideas ?

 

[IPKONFIG]

Log onto each router and type the command "show standby (group number you assigned)" and depress enter. This should tell you if your routers see each other in the HSRP. If they don't you've got a configuration problem. Each router must be in the same HSRP group and have the same HSRP address to point to the virtual router. Let me know if these are set correctly.

 

[wybnormal]

I would highly recommend that you set up HSRP *GROUPS* so you can load balance the routers. In a normal HSRP config, the standby router is just that.. standby.. traffic will go to the primary router. If you set up a group, then you can still use both routers and maintain HSRP.

See the following link for more details:

http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1216ea1/3550scg/swhsrp.htm#47890

http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35xu/olhelp/standby.htm

Loadsharing with HSRP

http://www.cisco.com/warp/public/619/7.html

MikeS

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