Public IP on loop back interface

[William Muriithi]

Thanks guys

Appreciate the feedback

Regards,

William

On 18 April 2012 07:22, Anthony de Boer <adb-SACILpcuo74 at public.gmane.org> wrote:
> William Muriithi wrote:
>> I am curious, have anybody ever seen a system using a public IP for
>> loop back interface instead of 127.0.0.1?
>
> Never instead of, but sometimes in addition to.
>
> For some high-end router protocols, each node having a canonical address
> that isn't subject to the whim of which particular interfaces and routes
> are up can be useful.  Cisco docs referred to it as a loopback address
> (confusingly, but it's been several years) or router ID, and the Linux
> boxes I was doing equivalent stuff on would have a public /32 address
> bound to lo:0 in addition to the usual lo 127.0.0.1.
>
> --
> Anthony de Boer
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