Hi, > Can I do (perhaps with iptables) on the server a rule to redirect some ip to > other? > > (example: internet web mail ip 87.10.123.32 redirect to 192.168.1.10) - > without specify any ports. maybe you're looking for the DNAT target, something like this : iptables -t nat -A PREROUTING -i interface -d 87.10.123.32 --to-destination 192.168.1.10 -j DNAT Take a look at iptables manpage for the details. Hope this helps, strawks