Configuring multiple gateway IPs on a single VLAN

On our previous Avaya P550 switches, a virtual interface was defined by
the IP address. You would then associate that interface with a VLAN.
For example, we had interfaces that looked like this:

10.10.1.1 - VLAN 43
10.10.2.1 - VLAN 43
10.10.3.1 - VLAN 43

On our new Cisco 6500's, the interface is defined by the VLAN. Now we
have an interface called "VLAN 43", but we cannot get run all three
gateway IP's on it.

VLAN 43
ip address 10.10.1.1
ip address 10.10.2.1 secondary
(Can I have more than one secondary IP address? What is the limit?)

Any ideas on how to make this work? I have a theory about using HSRP
groups on that VLAN interface. Or can I just use secondary IPs?

VLAN 43
ip address 10.10.1.2
standby 1 ip 10.10.1.1
standby 2 ip 10.10.2.1
standby 3 ip 10.10.3.1

Will this work? It is strange because HSRP is used to provide a
redundant gateway, and in this case it is running on a single router.

Tristan

 

:On our new Cisco 6500's

:VLAN 43
:ip address 10.10.1.1
:ip address 10.10.2.1 secondary
Can I have more than one secondary IP address? What is the limit?)

You can have many secondary IP addresses. I have never heard of
a limit.

 

How about NVRAM? We have 6500s with so many crypto stuff in it that we
had to use nvram bypass command. Also, do secondary addr's count
towards max number of IBD?

--

hsb


"Somehow I imagined this experience would be more rewarding" Calvin
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