Ingredients:
RH6.2
kernel 2.2.14-5.0 w/ ip_masq and ip__masq_autofw
ipmasqadm 0.27 for 2.2.13
This box has long been doing a fine of IP masquerade, and now I'm trying
to get port forwarding set up. I've read the HOWTO but so far none of the
suggestions are working. The howto suggests using "ipmasqadm autofw
..." which I have installed and run but with no luck.
When I run this:
ipmasqadm autofw -A -r udp 6070 6080 -h 192.168.0.2 -v
I get this:
Adding autofwd udp ports 6070 - 6080 to fixed host 192.168.0.2 U
Sounds good... However, when I fling UDP packets at port 6075, tcpdump
shows the UDP packets arriving, and ICMP error messages being sent back in
reply ('host xyz unreachable'). The UDP packets are NOT forwarded to the
192.168.0.2 machine (which is of course what I was hoping for).
Anyone got suggestions? Is "ipmasqadm autofw" the correct tool for this
job? What might I be overlooking? The machine in question has two
'external' IP addresses (in addition to the 192.168.0.x 'internal'
address), does that require extra steps when setting up forwarding?
Thanks in advance for your help...
Nate W
Redmond WA USA
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