HSRP advice

Answered Question
May 15th, 2008

I have three WAN sites and cosidering implementing HSRP. Site A is connected to Site B (T1) and C (768K). Site B and C are connected to site D via fiber. I am considering implementing HSRP per interface on B and C because one of the vital equipment at site D requires a static IP default gateway. Never used HSRP before, is there anything I should be concerned about?

Correct Answer by Giuseppe Larosa about 8 years 9 months ago

Hello Jonathan,

first of all HSRP is not a real routing protocol it provides a virtual default-gateway.

You can configure HSRP on D site routers and you can track the state of links between site D-B and site D-C on D site routers.

I would suggest you to have a dynamic routing protocol running on all sites and an horizontal link (can be a different subif/Vlan) on the D site routers so you can offer a default gateway to your equipment in site D and uses dynamic routing too.


In order to be able to communicate via HSRP if you use an ACL for antispoofing on site D client VLAN insert a line to permit destination ip 224.0.0.2 used by HSRP messages.


hope to help

Giuseppe

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
Correct Answer
Giuseppe Larosa Thu, 05/15/2008 - 21:29

Hello Jonathan,

first of all HSRP is not a real routing protocol it provides a virtual default-gateway.

You can configure HSRP on D site routers and you can track the state of links between site D-B and site D-C on D site routers.

I would suggest you to have a dynamic routing protocol running on all sites and an horizontal link (can be a different subif/Vlan) on the D site routers so you can offer a default gateway to your equipment in site D and uses dynamic routing too.


In order to be able to communicate via HSRP if you use an ACL for antispoofing on site D client VLAN insert a line to permit destination ip 224.0.0.2 used by HSRP messages.


hope to help

Giuseppe

ariela Thu, 05/15/2008 - 23:06

Question: site D is a router dual-homed?


Maybe your topology is like this?


A-----B-----D

\____C____/


or like this?


A-----B-|___D

\____C-|




Regards

Andrea

Actions

This Discussion