[56528] in North American Network Operators' Group
RE: 69/8...this sucks -- Centralizing filtering..
daemon@ATHENA.MIT.EDU (McBurnett, Jim)
Mon Mar 10 14:34:26 2003
Date: Mon, 10 Mar 2003 14:31:25 -0500
From: "McBurnett, Jim" <jmcburnett@msmgmt.com>
To: "Jack Bates" <jbates@brightok.net>, <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
I saw it version of this earlier:
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#ip route clueless
No seriously..
What if that customer has a VPN design with a dial backup behind their =
firewall.
Using BGP to suck down a default route from the provider,=20
when that default route goes away, then the internal router initiates =
the dial=20
backup solution to the remote network.=20
They should not be sending out any BGP routes though..
But.. See example above...=20
OR
They are in the process of preparing for Multi-homeing and just
have not got it up yet... You know one provider is toiling with the
T-1 facility FOC etc..
Sure this is somewhat unusual, but I have seen it, and corrected it...
Jim
>It would be nice if vendors had a variant to (in cisco terms) ip verify
>unicast reverse-path that would work in asymmetrical networks.=20
>If you only
>have a single link to the internet, the command works well,=20
>but then why
>would you ever run bgp for a single uplink?
>
>-Jack
>
>
