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I have an internal network with 192.168.*.* addresses and an outside side with
62.... addresses. There is a Linux (Redhat 6.1) box sitting between the two
networks. We have 127 IP addresses on the outside network and the Linux box
answers to all these addresses. There are a number of web (application)
servers sitting on the inside network. I am forwarding ports on the outside to
ports on internal hosts e.g.:
62..250 port 80 ---- maps to -----> 192.168..250 port 80
At the moment I am doing this with :
/sbin/ipchains -I input -p tcp -y -d 62...250/32 80 -m 250
/usr/sbin/ipmasqadm mfw -I -m 250 -r 192.168.42.250 80
This all works fine BUT the internal machines can't access the port forwarded
machines on there external IP addresses. This makes testing very difficult. At
the moment I have solved this by setting up a web proxy on the outside
network. I am hoping that there is a better solution to this.
ANY IDEAS !!!!
I connect with a 128k leased line and have people connecting from both the
inside and the outside. All traffic passes through the Linux box with port
forwarding out local servers for all incoming connections and IP Masq for all
out going connections from local clients. Is there a way I can give external
people priority over people going out with IP masq.
Many Thanks
Jasper Potts
PS Sorry if this has been sent twice but it dosen't seem to get through
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