[HECnet] DECnet on KLH10

[Mark Abene]

I wanted to be doing a netstat -ani, (-g only shows multicast for
ipv4/6), but the result is the same.   None of the DECnet multicast
addresses are being added, most notably (and absolutely necessary) are:

ab:0:0:3:0:0 - type 6003 - for DECnet Phase IV end node Hello packets
from each host, and
ab:0:0:4:0:0 - type 6003 - for DECnet Phase IV router Hello packets from
the router.

I've tried adding these with both enaddr from KLH10 and FreeBSD's
built-in "mtest", but both return errors.   This seems to be a
FreeBSD-specific problem which so far I'm unable to find the reason for.

Mark


Mark Abene wrote:
Mark Abene wrote:
I've actually made a new discovery... looking at "netstat -g", I'm
seeing that none of the multicast addresses exist that DECnet uses and
requires!   This would explain why I don't see any DECnet traffic at all.
I compiled KLH10's enaddr utility in an attempt to add the multicast
addresses manually, and I get failures for all attempts...
"SIOCADDMULTI failed - Can't assign requested address".   My server's
kernel wasn't built with multicast routing enabled, which is not a
default.   I'm wondering if this is the cause of the error.   I'm going to
do some further testing.

Regards
Mark

Well I was mistaken about the multicast routing, that's only for doing
DVMRP with mrouted (MBONE, etc).   Local LAN multicast should work "out
of the box" on FreeBSD.   Still trying to track down why this is failing,
since it's my primary candidate for DECnet not working...