This is wrong Brian, and you need research some things before you tell other
people the wrong answers. You want to turn the BGP sync off by the no sync
command, so that the BGP routes will be in the IGP routing table. This is a
rule of BGP scalability issues, and you DO NOT want it off if you are
connecting to multiple ISP's or service providers. Again, the link to look
at this is
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/icsbgp4.htm
-----Original Message-----
From: Brian [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 17, 2000 7:10 AM
To: Hixon Sgt James R Jr
Cc: 'Luobin Yang'; '[EMAIL PROTECTED]'
Subject: Re: Why the route in BGP table doesn't appear in IP table.
A little confusing below, 99% right, but "no sync" causes the IGP and EGP
to not be in sync and is probably what you want in most cases, like
multihoming to multiple ISP's etc.
On Thu, 17 Aug 2000, Hixon Sgt James R Jr wrote:
> The reason for this is because your EGP is not synchronized with your IGP.
> By default BGP will not redistribute those routes learned into the IGP.
This
> is good because it allows for scalability issues to be resolved with this.
A
> way to bypass this is by redistributing networks, redistributing static,
and
> also by the statement no synchronization under your BGP statement.
However,
> this is not a great idea to do on an Enterprise network connecting to two
or
> more ISP's. For more information- I think it is in Jeff Doyles' Routing
> TCP/IP Vol I. If not, you can learn allot more about it using the
following
> link.
>
> http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/icsbgp4.htm
>
> Hope this helps
>
>
>
> -----Original Message-----
> From: Luobin Yang [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 16, 2000 10:00 PM
> To: [EMAIL PROTECTED]
> Subject: Why the route in BGP table doesn't appear in IP table.
>
>
> I found a lot times, some routes in BGP table don't show up in IP table.
> When I use "show ip bgp", I can see the route to a destination, but when
> I use "sh ip route", I can't find the route to the destination. Does
> anybody know the reason?
>
>
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-----------------------------------------------
Brian Feeny, CCNA, CCDA [EMAIL PROTECTED]
Network Administrator
ShreveNet Inc. (ASN 11881)
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