Wouldn't there be some NATing involved? Else what is your DNS server going to do with a destination address that it doesn't own?
Chuck -----Original Message----- From: cisco-nsp [mailto:[email protected]] On Behalf Of Mike Sent: Tuesday, November 12, 2013 11:26 AM To: 'Cisco-nsp' Subject: [c-nsp] policy routing by dest port? Hi, I have a situation which may require me to reroute all dns traffic in my network comming from subscribers destined to offsite resolvers, over to one of my own resolvers instead. The subscribers are all terminated on 7201 and effectively I would like to have a rule I can drop in that says 'dns traffic to anywhere but my official resolvers is forwarded <here>'. The subscribers are mostly pppoe which means lots of virtual access interfaces on the router, and no adjusting the supplied dns servers via ppp won't do (I need to overcome corrupt / hijacked cpe which are ignoring these values). Thanks for any pointers. Mike- _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
