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I have a problem at a place where 5 ME3400 switches are connected in a straight line. I can't do much about the topology of that place, but the problem is they are all DHCP Snooping, but unicast replies from the dhcp server further up the hierarchy g...
No idea if this is the place to ask, but I cannot figure this out. Got 3 3750's, and a bunch of ME3400 switches. One of the 3750 runs a dhcp server, but the problem is, I keep seeing that it's very, very hard for clients to actually get an IP. Someti...
I feel I have to bump this -- I keep seeing this issue, and I don't know how to fix it If I have 2 "customer" switches, each with dhcp snooping active, chained, dhcp messages that are unicasted are intercepted by the first switch, and when it determi...
Come on Someone must have seen it .. it's the unicast replies that don't make it back to the client switch, because of the "the message is dropped." - it's not being forwarded as a layer 2 message should.Probably because the switches between the dh...
Almost seems to be the same problem I talked about in https://supportforums.cisco.com/thread/2173847?tstart=0actually. In that case, I traced it down to the reply from the dhcp server not making it back, because dhcp request broadcast from the client...
Unfortunately, that isn't an option since the switches are *user* switches, in a chain. I cannot use that option since it would allow option 82 from user ports. It's a global setting, not a per-port one./Micke