RE: Masquerading on local ports

[Henry Ritzlmayr <h.ritzlmayr@gmx.at>]

Am Don, 2003-03-20 um 16.29 schrieb Rob Sterenborg:
> > And here is the question. How is it possible to nat a lokal port?
> > 
> > IPTABLES -t nat -A PREROUTING -p tcp -d 127.0.0.1 
> > --destination-port 81 -j DNAT --to-destination 127.0.0.1:80
> > 
> > telnet localhost 80  <<< works
> > telnet localhost 81  <<< Connection refused
> 
> iptables -t nat -A PREROUTING -d 127.0.0.1 -p tcp --dport 80 -j REDIRECT
> --to-ports 81
> 
> 
> Rob

Tanks for the answer,
I tried that one already but it behaves the same.
I also tried 

IPTABLES -t nat -A PREROUTING -p tcp -d 172.16.172.12 --destination-port
81 -j REDIRECT --to-ports 80

wich works perfect for both port 80 and 81 from a foreign host.

Henry