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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I’m trying to help out another JNOS sysop who’s having trouble with AXUDP.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>He had an interface defined (attach axudp …) for a more than a year and it was working. Now it’s not working. I can’t seem to find the problem.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>First we tried a connection from me to him.<o:p></o:p></p><p class=MsoNormal>Using tcpdump, we can see the connection packet going to JNOS on tun0.<o:p></o:p></p><p class=MsoNormal>But then JNOS responds with ICMP udp port 93 unreachable.<o:p></o:p></p><p class=MsoNormal>He does have “start ax25” in his autoexec.nos.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Next, we tried an outbound connection from him to me.<o:p></o:p></p><p class=MsoNormal>On tun0, we see his connect packet go out and my response come back. But then his JNOS sends an ICMP udp port 93 unreachable.<o:p></o:p></p><p class=MsoNormal>To me, this is even more bizarre because he clearly has AXUDP configured in order to create the connection attempt. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So the question is: what would cause JNOS to send an ICMP port unreachable message for udp port 93?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Michael<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>