-->"itojun" == itojun  <itojun@iijlab.net> writes:

  itojun> there's a serious bug in 1.5 GENERIC kernel, udp multicast
  itojun> input path. please upgrade to 1.5.1_BETA kernel, or apply
  itojun> the following patch to sys/netinet/udp_usrreq.c. sorry for
  itojun> the mess.

the patch does fix the problem.  thank you!



d


ps. sorry for the delayed response: remote test machine, with
dual-boot defaulting to a different OS.  i had to get someone at the
console before i could test it :-(