(Woody, XFree 4) remote x fails with tcpdump message 'cannot access xdmcp port'

[Martin Edward John Waller <martin.waller@flomerics.co.uk>]

Hello,

I can't get remote x to work - even Xnest to
localhost fails.  With tcpdump, I see messages
akin to the above, complaining that the xdmcp port
can't be accessed.  This port is listed in my
/etc/services, I have the 'no-listen-tcp' option
removed in the relevant files and other networking
works fine (telnet, ping, ftp, masquerading).
xhost + works though.
What's up?  I dunno where else to look...

Martin


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