The SPAN port becomes un-reachable when port mirroring is enabled.

[Frank]

I did SPAN mirroring port and the destination is the WFilter Server. But after doing that the server become a dummy cannot access it from the network and the server cannot access any PC in the network but form the local i can get all traffic and bandwidth . so how can i access this server after doing SPAN port from the network and manage it remotely?

[gengw2000]

Some switches do not allow outgoing traffic on the mirroring port by default.



For example, to enable outgoing traffic, you need to set "ingress" parameter for cisco switches, which is disabled by default.



The solution is to add another NIC in the WFilter computer.



Please check this topic for details: http://forum.imfirewall.us/forum/yaf_postsm596_Mirroring-target-port--becomes-unreachable-when-port-mirroring-is-enabled-.aspx