We have a situation where our nameservers are contacting an upstream nameserver to resolve a name using a source port 53 and a destination port 53. We have found out that the upstream name server will not honor our request since the source port from our nameservers is 53. Until we can resolve this with the upstream admin, we would like change the source port from our name server to a high numbered port using iptables when it tries to contact the upstream nameserver. We can not seem to put together a rule to do this. Is it even possible? - To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
