[c-nsp] Inter ISP routing question

Rey Martin rey.martin at qalacom.com
Sat Apr 16 21:24:12 EDT 2005


> Here's the setup:
>
> T-1 connection to ISP A, /24 from ISP A
>
> 2xT-1 connection to ISP B
>
> If I point the default route to ISP B, most networks
> appear to stop respondiing.  I guess that I'm tripping
> over some anti-spoofing configurations.  Is there a
> way to make this work without going BGP?
>
> --Chris
>

btw ISP B allocate some IP for you as well?
you can try to use PBR for this,

source  IP from ISP A    ---- then--- route to ISP A T1
source IP from ISP B ---then--- route to ISP B

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_c/qcprt1/qcdpbr.htm


rey 



More information about the cisco-nsp mailing list