On Tuesday, 09 December 2003, at 17:34:39 +0100, Alen Sarkinovic wrote: > is there anybody who can tell me how to forward request to other host, i > would like to forward all dns requests to other dns server and it must be > done with packet forwarding because dns server (resolver) must go down. > Just use "iptables" to set up DNAT rules for DNS traffic (remember, DNS queries usually use DNS, but sometimes they use TPC). Depending on the "redirector IP address" and the "final IP address" of the DNS server you will also have to add an entry ni the routing table and maybe a static proxy ARP entry to the "redirector box". Both the route and the proxy ARP enrty could be needed if the final DNS server is not connected to any local network. Just depict packets arriving at the box, rewrite the addressess as "iptables" would do (DNAT) and follow the diagram at: http://www.docum.org/stef.coene/qos/kptd/ In the PRDB (Policy Routing DataBase) is where the routing decissiont takes place, and where you should see clearly the need for routes and/or static proxy ARP entries. Greetings. -- Jose Luis Domingo Lopez Linux Registered User #189436 Debian Linux Sid (Linux 2.6.0-test10-mm1) _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
