[nos-bbs] Re: no in, just out!

[MG]

another good one is IPUDP.  It is the direct encapsulation of
IP within UDP to destination port 94 just like AXUDP is the direct
encapsulation of AX.25 inside UDP to destination port 93...  This can be 
a pretty good workaround
 for people who have small IPNAT routers
and cant put themselves in a dmz, and for subscribers who have isp's who
won't let any traffic through their perimiter routers except for TCP,
UDP and ICMP