Ip ospf demand-circuit : Default Route keeps BRI up/up

From: Dennis J. Hartmann (dennisjhartmann@hotmail.com)
Date: Fri Jun 24 2005 - 12:35:41 GMT-3

    Let me frame the issue. I'm injecting a Null default route into BGP
with an ADMIN Distance of 250 so the unknown traffic will be thrown in the
bit bucket if the real default route injected by another AS goes down.
 
    I'm using the ip ospf demand-circuit on my BRI which was working like a
charm until this Default routing in the BGP section of the lab. As soon as
I created a default route to Null 0 and started advertising the beast into
BGP, my debug ip routing show me a line which reads "RT: NET-RED 0.0.0.0/0
RT: NET-RED queued, Queue size 1 every 15 seconds or so. It's keeping my
ISDN link up.
 
    Any ideas?

Sincerely,

 

Dennis J. Hartmann

White Pine Communications

dh8@pobox.com

CCSI#23402/CCIP/CCNP/CCDP/CCNA/CCDA

Cisco IP Voice Support & Design Specialist

Cisco Optical, VPN & IDS Specialist

MCSE

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