A big draw back is how protocols like OSPF deal with secondaries. OSPF
treats a secondary like a stub network and will never form adjacencies on
the secondary subnet.
"Rampley, Jim" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
> You get the benefit of being able to add another subnet to single router
> interface. Such as:
> ip address 10.1.1.1 255.255.255.0
> ip address 10.1.2.1 255.255.255.0 secondary
>
> A drawback is that nodes connecting to that interface that are on the
> different IP subnets would need to bounce off the router to talk. A
better
> solution for this would be to change your subnet mask to 10.1.1.1
> 255.255.254.0. Sometimes this is not possible in the short term if the
> addressing is not contiguous.
>
> Jim
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, July 05, 2000 4:18 PM
> To: [EMAIL PROTECTED]
> Subject: Secondary IP address
>
>
> What are the advantages of using a secondary IP on and ethernet interface
>
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