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I have a strange issue with linux hosts running kernel 3.x (e.g fedora 16, ubuntu 11.10), I am unable to SSH and traceroute (only tests done currently) hanging when travelling over a vlan network partition.

I have setup a test network with 2 hosts and a cisco router in the middle, SSH will hang when trying to connect between them. If i replace the OS on the hosts to say Fedora 12 the connection works correctly.

Has anyone experienced this, have a solution?

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How is this a vlan issue and not just a normal connectivity issue? Does it work when on a non-vlan? –  Paul May 31 '12 at 13:49
yes it does work on a non-vlan, sadly the cisco 861 router i wish to install into our network doesn't use non-vlan routing –  fir3x May 31 '12 at 13:52
So you confirmed by changing routers? Did anything else change when you changed routers? Are the vlans tagged or just configured on the ports? The reason I ask is that a host has no visibility of the vlan status of a port unless it is tagged. –  Paul May 31 '12 at 13:55

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