[Xorp-users] Unreachable default route.

[Tim Durack]

On a Cisco you would configure a floating static route - that is a
static with a higher administrative distance than a dynamic routing
protocol. The static will be overridden by the dynamic, but if the
dynamic default goes away, the static will be installed.

Not sure if XORP supports this (I don't think you can change admin
distance), so this probably doesn't help.

Tim:>

On 8/30/07, Ben Greear <greearb at candelatech.com> wrote:
> Pavlin Radoslavov wrote:
> > Ben Greear <greearb at candelatech.com> wrote:
> >
> >
> >> Is there a way to get Xorp to put in an un-reachable default route
> >> if no default gateway is known/configured for a particular routing table?
> >> This keeps Linux from trying other routing tables (for instance, when you
> >> have specified a particular routing table per some rule.)
> >>
> >>  From the command line, you'd do something like:
> >>
> >> # 100 is the routing table ID
> >> ip route add unreachable 0/0 table 100
> >>
> >
> > It sounds like you need to configure a discard interface, and point
> > the default route to that interface.
> >
> I only want this to exist _IF_ there is no valid default route.  So, I
> think it would have to
> be more dynamic than a config file, since I assume OSPF or similar might
> negotiate a
> default route (and fail to find one at other times??)
>
> Ben
>
> --
> Ben Greear <greearb at candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
>
>
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