I have the basic topology you conjecture, and I have configured the basic SRB as you describe. On my system it works in the same way as the ring group model that I described - I get some bridging but no browsing. The clients are Win2k machines running MS NetBEUI - no IP. As fas as I know NetBEUI requires STEs, which is why I specified the "source spanning". Without that line I did not capture any traffic passing through the bridge/router to the remote ring. With that line in place I do see bridge traffic specifying the "110" RIF, which I believe means STEs. With the configuration you prescribed (and also using a configuration including a ring group), the SRB is working partially as I indicated. That is, I get name queries and name replies passing through the bridge. I can also see LLC packets (polls and finals) in a call and response pattern. However, I am unable to browse because the SMB dialect negotiation packet is not passing through the bridge/router. At least I surmise this is why I cannot browse. I see the client send an LLC packet that the NetMon agent describes as an SMB packet that is attempting to negotiate a LanMan dialect. However, this packet never passes through the bridge/router to the target. As a result the target never sends a dialect agreement so there is no NetBEUI session established. When I hook all the machines up on the same ring or bridged through an Olicom TrBRF, I do see a reply from the target machine - usually saying it wants option #5 which is NT LM 0.12 or some such. This SMB packet has the same MAC addresses and RIF as other traffic that is passing. I can match the packets from two separate captures on either side of the bridge - except for the SMB packets, of course. I have gotten the same results using a 7000 (11.2.15) and a 7010/RSP (12.2.?). They are both using the CX Token cards. These are the only machines I have with multiple token interfaces.
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