From: Justin Hsu (justinhsu72@xxxxxxxxx)
Date: Sat Nov 17 2001 - 19:21:15 GMT-3
----- Original Message -----
From: "Roman Rodichev" <rodic000@hotmail.com>
To: <psimmons@netcomuk.co.uk>; <jmathers@inflow.com>;
<ccielab@groupstudy.com>
Sent: Sunday, June 17, 2001 3:59 PM
Subject: Re: question about NETBIOS, RIF fields, and DLSw+
> Jim,
>
> Peter is right, you need "source-route spanning" turned on.
>
> I never tried it, but I know that Windows host will first send out NetBIOS
> name query without source information field. So if you have transparent
> bridging turned off they won't work. Then if the host doesn't see
responses
> it will send out name query with RIF set.
>
> try this also
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VXD\Netbeui
>
> and set QueryAlwaysUsesSourceRouting to 1
>
> And also, are you using IBM or Microsoft drivers for your TR NICs?
>
>
>
> >From: "Peter Simmons" <psimmons@netcomuk.co.uk>
> >Reply-To: "Peter Simmons" <psimmons@netcomuk.co.uk>
> >To: "Jim Mathers" <jmathers@inflow.com>, <ccielab@groupstudy.com>
> >Subject: Re: question about NETBIOS, RIF fields, and DLSw+
> >Date: Sun, 10 Jun 2001 19:26:57 +0100
> >
> >Jim,
> >
> >Have you got the "source-bridge spanning" command on the TR interfaces?
> >
> >By default, NetBIOS uses spanning explorers, and SNA uses All-routes
> >explorers. If you don't use the IBM spanning tree protocol to build a
> >spanning tree path for STE explorers, then the interface drops them, as
it
> >regards itself to be in "blocking" mode for these frames. Using the
> >"source-bridge spanning" command puts the interface automatically into
> >"forwarding" mode for the NetBIOS STE frames, and allows them to be
> >forwarded onto the DLSw process (or wherever else).
> >
> >This is an SRB thing, as you've seen TB just forwards the frames as you
> >expect.
> >
> >Try a "debug DLSw reach" before and after applying the command and see
the
> >difference.....
> >
> >Lots more info on this on CCO, search on "source-bridge spanning" as a
> >starter.
> >
> >Hope this helps,
> >
> >Regards
> >
> >Pete S.
> >
> >(Four days 'til Brussels.......)
> >
> >
> >-----Original Message-----
> >From: Jim Mathers <jmathers@inflow.com>
> >To: Jim Mathers <jmathers@inflow.com>; 'ccielab@groupstudy.com'
> ><ccielab@groupstudy.com>
> >Date: 17 June 2001 17:21
> >Subject: RE: question about NETBIOS, RIF fields, and DLSw+
> >
> >
> > >Further, I just changed the Token Ring interfaces from SRB to
Transparent
> > >bridging by removing the statement "source-bridge 20 1 100" and adding
> >the
> > >statement "bridge-group 20" on both of the routers and it works fine. I
> >also
> > >had to remove the "source-bridge ring-group 100" from the DLSw+ configs
> >and
> > >add a "dlsw bridge-group 20". Now everything is working fine. I am
forced
> >to
> > >assume that WIN98 is NOT generating a RIF, but instead is sending a
> >NETBIOS
> > >name-query. I am still looking for feedback on this. Any help would be
> > >appreciated. Also, all Cisco documentation that I have read says that
you
> > >have to do SRB for Token Ring. I guess that I am misunderstanding
> >something
> > >because I am successfully doing transparent bridging between two remote
> > >Token-Rings. Any feedback? Please comment. Jim
> > >
> > >-----Original Message-----
> > >From: Jim Mathers
> > >Sent: Sunday, June 17, 2001 10:35 AM
> > >To: 'ccielab@groupstudy.com'
> > >Subject: question about NETBIOS, RIF fields, and DLSw+
> > >
> > >
> > >Hello,
> > >
> > >I have two hosts connected to two different MAUs that in turn connect
to
> >two
> > >different routers via Token-Ring interfaces in my lab. The two routers
> >are
> > >separated via an IP backbone. I have configured DLSw+ to bridge between
> >the
> > >two Token Rings. The hosts are running WIN98 with only NETBEUI
> >configured.
> > >When I click on Network Neighborhood, the hosts do not find each other.
> >Nor
> > >does DLSw build a circuit from end to end. I get my DLSw+ Peers to
> >connect
> > >fine. I have been troubleshooting this all night and after getting very
> > >frustrated, I pulled up the DLSw+ troubleshooting document on Cisco's
web
> > >site. It says that it is possible that the Operating System (WIN 98) on
> >my
> > >hosts will not generate a RIF, and, if this is the case, DLSw+ will
fail
> > >because the router will look for a RIF on the incoming frames. If the
> >frames
> > >do not contain RIFs, then the router will not be able to source-route
> >bridge
> > >the packet onto the virtual ring. Has anyone seen this? I want to put
> >this
> > >behind me. I just finally joined the list and thought it would be a
good
> > >idea to bounce this of off the crowd. My lab is scheduled for September
> >23rd
> > >in San Jose. Thanks in advance.
> > >
> > >Jim Mathers
> > >**Please read:http://www.groupstudy.com/list/posting.html
> > >**Please read:http://www.groupstudy.com/list/posting.html
> >**Please read:http://www.groupstudy.com/list/posting.html
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