Re: Strange results from a tcpdump, can anyone help?

So Bert, to answer your question, I'm looking at some of the packets
(that were supposed to go outside the vlan) and the MAC DA on them
seems to be the core switch interface (all the access switches I am
discussing are plugged into a core switch). So yes, it would seem that
traffic destined to the core is somehow showing up at other ports - in
this case almost every port on that vlan.

Nothing odd about the network that I can tell. They are not one-way
UDP datagrams - this is regular http and tcp traffic.

.

Relevant Pages

  • Re: assigning MAC address to a VLAN
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    (comp.dcom.lans.ethernet)
  • Re: assigning MAC address to a VLAN
    ... There are port based VLANs in which you specify the switch ports to associate with a given VLAN. ... Devices connected to those ports will be in a common VLAN. ... There are MAC address based VLAN's where you associate the MAC addresses of hosts with the VLAN. ...
    (comp.dcom.lans.ethernet)
  • Re: assigning MAC address to a VLAN
    ... There are port based VLANs in which you specify the switch ports to ... associate with a given VLAN. ... MAC addresses of hosts with the VLAN. ... what is the use of assigning a MAC address to a VLAN??? ...
    (comp.dcom.lans.ethernet)
  • Re: Strange results from a tcpdump, can anyone help?
    ... discussing are plugged into a core switch). ... traffic destined to the core is somehow showing up at other ports - in ... this case almost every port on that vlan. ... table and see if the MAC address of the router has been learned there. ...
    (comp.dcom.lans.ethernet)
  • Re: arp-proxy
    ... address allocated by DHCP ... the MAC address for cust1 must never appear as a source MAC ... a broadcast from the service subnet should appear on all customer VLANs ... to the correct customer VLAN ...
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