[nsp] Cisco 1720 or above Firewall using DHCP outside
Charles H. Gucker
cgucker at cv.net
Thu Nov 20 17:50:21 EST 2003
> |>ip route 0.0.0.0 0.0.0.0 Ethernet1
> |>any questions? :)
> | Yes. Doesn't the above statement mean that the router performs an
> | ARP request for any destination it's trying to reach? Sounds like
> | concentrated evil to me, and it would depend on "ip proxy-arp" to be
> | enabled in the upstream router, which - although default - is not a given.
> My guess is that even though his provider hands out a DHCP address that the
> gateway address is static and could be configured in the route statement.
Well, the only thing constant with the upstream interface is it's MAC/ARP
responce. Since multiple possible networks exist for the DHCPable networks,
you won't be able to statically assign the route.
More information about the cisco-nsp