"netbios-dgm 138/udp" ?
Christopher R. Hertel
crh at nts.umn.edu
Wed Jan 10 18:03:59 GMT 2001
[Charset iso-8859-1 unsupported, filtering to ASCII...]
> See RFC 1001, RFC 1002 for definitions of these ports.
> Microsoft uses the NetBIOS Datagram service for several functions. One is
> Workgroup Browsing. If you want to support network browsing on the amiga,
> then the amiga smb code should support the datagram service.
Good post, BTW.
The datagram service is supported in nmbd. We follow Microsoft's lead and
do not implement a fully RFC-compliant NBDD. The problem is the NBNS
(WINS) implementation of group names. The RFCs specify that the NBNS
should list IPs of all nodes that register a given group name. Intead,
Microsoft registers only 255.255.255.255. This limits group multicasts to
a single IP subnet. (There is an exception: WINS will keep up to 25 IP
entries for <ntdomain>#1C names, which identify Domain Controllers.)
Anyway, the NBDD is supposed to distribute datagram multicasts to all
members of a group--even across router boundaries. This, of course,
cannot happen if the NBNS doesn't have a complete list of IPs. Thus,
though Microsoft impliments local datagram transport, they do not actually
implement the NBDD (the distribution server). Samba mimics Microsoft
Christopher R. Hertel -)----- University of Minnesota
crh at nts.umn.edu Networking and Telecommunications Services
Ideals are like stars; you will not succeed in touching them
with your hands...you choose them as your guides, and following
them you will reach your destiny. --Carl Schultz
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