[nsp] routing table

[dtodd at partners.org]

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Dave:

Marc is right w/the route installation and RTFM. What you are looking
for is a floating static route which uses administrative distances. 
This type of configuration is used alot w/dial-up routers.  
See
http://www.cisco.com/en/US/tech/tk801/tk379/technologies_configuration
_example09186a00800b1148.shtml
and for administrative/route selection:
http://www.cisco.com/en/US/tech/tk648/tk365/technologies_tech_note0918
6a0080094823.shtml
for some snips.

FYI:
The lower the administrative distance the more "prefered" the route
will be for selection.  Let me know if I can help further.

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Douglas M. Todd, Jr.
Network Engineering
Partners Health Care
Building 149
149 13 Street
Charlestown, MA 02129-200
Tel: 617.726.1403
Email: dtodd@partners.org
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> -----Original Message-----
> From: cisco-nsp-bounces@puck.nether.net
> [mailto:cisco-nsp-bounces@puck.nether.net]On Behalf Of
> davek@pacific.net.sg
> Sent: Monday, December 16, 2002 11:24 PM
> To: cisco-nsp@puck.nether.net
> Subject: [nsp] routing table
> 
> 
> 
> hi, need some advise on simple routing..
> 
>  ip route xx yy zz
> 
> suppose I have a static route with the next hop specified as 
> a pt-to-pt IP address (zz) on the same router.  If the 
> interface for that pt-to-pt IP address is down, should the 
> static route (for xx) still take effect, when the router 
> learn the next hop (zz) as /16 or other prefix length, 
> instead of /30.  The longer prefixes is advertised (OSPF) by 
> other routers which is a few hops away.
> 
> Realise different vendors do it differently. Some drop, some 
> don't.  Who is correct??  
> 
> Anyone knows any RFC on the selection/dropping of routes?
> 
> 
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