I was in digest mode, hope this gets attached to thread.
Thanks for your response. In preparing a small capture I discovered
that my dissecting problems only occurred I conversations through my 2003
machines, not a setting problem in Wireshark. I found that there were unrecognized(~1000k)
packets where there should have been SIP(~500k) packets.
9 0.207179 192.168.100.99 192.168.100.198 NSIP Unknown
PDU type
Network Service Over IP
PDU
type: Unknown (0x41)
So I looked at the interfaces and found that turning
off the “Adaptive Technology” makes it work.
Thank you