RE: Change administrative distance command

From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Sun Dec 07 2003 - 21:25:59 GMT-3


William,

        Yeah it's just a typo. It still works because 150.4.1.1 will fall
in the range of 0.0.0.0 150.4.1.1. The syntax should be:

distance [distance] [address] [wildcard] [acl]

HTH,

Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com

Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 708-362-1418 (Outside the US and Canada)

> -----Original Message-----
> From: William Chen [mailto:kwchen@netvigator.com]
> Sent: Saturday, December 06, 2003 8:37 PM
> To: Brian McGahan
> Subject: Re: Change administrative distance command
>
> Hi Brian,
>
> Thanks a lot. /William
>
> However,
>
> > Rack1R1(config)#router ospf 1
> > Rack1R1(config-router)#distance 109 0.0.0.0 150.1.4.4
>
> It should be Rack1R1(config-router)#distance 109 150.1.4.4 0.0.0.0?
> Just
> a typo?
>
> > Rack1R1(config-router)#end
> > Rack1R1#clear ip route *
> > Rack1R1#sh ip route 150.1.4.4
> > Routing entry for 150.1.4.4/32
> > Known via "ospf 1", distance 109, metric 75, type intra area
> > Last update from 12.0.0.2 on Ethernet0/0, 00:00:02 ago
> > Routing Descriptor Blocks:
> > * 12.0.0.2, from 150.1.4.4, 00:00:02 ago, via Ethernet0/0
> > Route metric is 75, traffic share count is 1
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987
> > Direct: 708-362-1418 (Outside the US and Canada)
> >
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > > Bob Sinclair
> > > Sent: Saturday, December 06, 2003 2:15 PM
> > > To: William Chen; ccielab@groupstudy.com
> > > Subject: Re: Change administrative distance command
> > >
> > > William,
> > >
> > > ISIS is like OSPF in the way you handle administrative distance. If
> you
> > > issue the command
> > >
> > > show isis database detail
> > >
> > > you will see that each router is associated with an IP address that
> is
> > > used
> > > as a router id. If you reference that ip address in your distance
> command
> > > you will be able to change the distance for LSPs from that router.
> > >
> > > HTH,
> > >
> > > -Bob Sinclair
> > > CCIE #10427, CISSP, MCSE
> > > bsinclair@netmasterclass.net
> > >
> > > ----- Original Message -----
> > > From: "William Chen" <kwchen@netvigator.com>
> > > To: <ccielab@groupstudy.com>
> > > Sent: Saturday, December 06, 2003 5:01 AM
> > > Subject: Change administrative distance command
> > >
> > >
> > > > Dear All,
> > > >
> > > > The command "distance <distance> <ip_adrr> <wildcard_mask>
> <acl>",
> > > is
> > > > used to change the AD of the routes learnt from a particular routing
> > > source.
> > > > For distance vector routing protocols, such as RIP/EIGRP/BGP, the
> > > "<ip_addr>
> > > > <wildcard_mask>" is configured to match the IP address of the
> router
> > > who
> > > > send the routing update.
> > > >
> > > > However, for OSPF, the "<ip_addr> <wildcard_mask>" should be
> > > configured
> > > > to match the router ID of the router who originated the routes. How
> > > about
> > > > ISIS? What is it try to match?
> > > >
> > > > Best Regards,
> > > > William Chen
> > > >
> > > >
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