A Basic question on First Hop Redundancy Protocols.

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May 8th, 2012
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Hi Experts,

This may sound to be a very basic question but just came across when surfing through the website.

1. can we configure mutliple Virtual IP's in VRRP / HSRP / GLBP ? if so how many?

2. Any use case for configuring Multiple virtual IP's ?


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Sergey Fer Tue, 05/08/2012 - 05:13
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1. Yes, you can configure all of them simultaneously.

2. VRRP and HSRP do not have embedded load-balancing. You may use multiple virtual IPs to load balance traffic in these protocols.

vijay.swaminathan Tue, 05/08/2012 - 05:26
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Hi Sergey,

Thanks for your response. sorry if my question wasn't clear.

I meant to ask....

interface FastEthernet0/0

ip address

duplex auto

speed auto

standby 1 ip

standby 1 ip secondary

standby 1 ip secondary

standby 1 priority 150

standby 1 preempt

here 122 and 123 are secondary Virtual Ip's Just curious to know what could be the purpose of this? and how many like this we could configure?


Message was edited by: Vijay Swaminathan

Sergey Fer Tue, 05/08/2012 - 05:37
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Sorry for my miunderstanding...

This thing is analogue of secondary IP not more, not less. What if you have a number of addresses assigned to interface (VLAN, subif, ...) and need to make them redundant? It is for that case.

Sergey Fer Tue, 05/08/2012 - 10:42
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Sure. Imagine you have a router and it is configured like this

interface g0/0

     ip address

     ip address secondary

     ip address secondary

and all these IPs are default gateways for somebodies.

Next, you wish to create HSRP for acieving redundancy. What to do? Well... You create HSRP with secondaries and voila


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