[c-nsp] IP unnumbered vlan subinterfaces question

[Aaron]

Loopback interfaces do not go down, so I'm not sure what benefit you are
getting besides the ability to blackhole the 10.10.10.0/24 if the ethernet
goes down.

On Mon, Aug 3, 2009 at 11:09, Michael Ulitskiy <mulitskiy at acedsl.com> wrote:

> Hello,
>
> Guys, are there any drawbacks of doing the following:
>
> interface Lo0
>  ip address 10.10.10.1 255.255.255.0
> !
> interface FastEthernet0/0.1
>  encapsulation dot1q 1 native
>  ip unnumbered Lo0
> !
> ip route 10.10.10.0 255.255.255.0 FastEthernet0/0.1
> !
>
> as opposed to having ip address configured directly on the interface as
> usual?
> I need that ip address to stay always up regardless of Fa0/0 state, 'cause
> it's used for other services that should stay up
> and I'd prefer to avoid assigning another ip address exclusively for
> loopback use.
> It seems to work in my lab, but I thought I'd better ask...
>
> Thanks,
> Michael
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>