Good morning all,
I have a server program that work on UDP port 121. I wan to hide it by using
IPPORTFW installed on a machine running RH 5.1 (kernel 2.0.34) . I issued
the following commands:
bluesky# ipfwadm -F -l
bluesky# ipfwadm -I -l
bluesky# ipfwadm -O -l
bluesky# ipfwadm -F -a m
bluesky# ipportfw -A -t 172.16.1.2/121 -R 192.168.1.1/121
bluesky# ipportfw -A -t 172.16.1.2/23 -R 192.168.1.2/23
bluesky# tcpdump
And then, I use a client program that connect to 172.16.1.2 via UDP port
121. It's not forwarded to 192.168.1.1. If I telnet to 172.16.1.2, it's
forwarded to 192.168.1.2 and anything's fine. It mean that the IPPORTFW ONLY
work with TCP services, right? Or there are something wrong with my
configure? Is there any program likes IPPORTFW, but work with UDP services?
Thank you inadvanced!
Best regard,
Dong
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