Ok. Here is what I have on this so far. Vlan port assignment somehow got wiped out. I went in and put the right port back on the switch in my front room. Now the server interface can communicate with everything on vlan0010 with addresses 192.168.2.x except for .10. I keep getting request timed out for this one. I put a static IP on my wired laptop adapter that is in the same address range asnd I can ping everything consistently just fine on that vlan. My question now is why can't my server ping just this one IP address when my laptop has not an issue at all getting to it? By the way something else interesting. Earlier this morning I could ping everything on the network except .20. I bring the server back up from a restart (Dell R710 with Broadcom 5709C NetXtreme 2) and then I can't reach .10. subsequent resatrts and I still cannot reach .10 but I can reach everything else.
I mirrored a port to capture everything from the switch in the back room to port 23. I hooked into port 23 with wireshark and saw the pings going back and forth but I also saw loads of multicast traffic going to 239.192.2.x, 239.192.3.x, and 239.192.4.x Turns out these multicast transmittions are from my Allen Bradely PLC interface (3 of them). With IGMP on by default I'm thinking this can't be causing too much of an issuie but then again this multicast traffic accounts for over %50 of my pcap.
Alessio--shouldn;'t I have trunking enabled when linking 2 Cat 2960s together that need to be aware of the same vlan? What would be the configuration for two switches for static access?
