[c-nsp] Proxy ARP -- To disable, or not to disable..

[Raul Lopez Nevot]

>
> Turn it off.
>
> To borrow off Team Cymru's secure IOS template, "Don't
> pretend to be something you're not. :-)".
>

Disable it now.
Last week we changed some networks behind a nortel contivity to be behind a
FWSM / CAT6500. One of these networks is a mixture of routers and servers
spreading on two switches.  Servers could not see these routers on the same
network because FWSM was proxy-arp'ing its IPs.

Is more trouble to have it active than the benefits of using it. I don't
know why cisco is still having it active by default.

Regards