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Cannot see return traffic on a SPAN session

yves.haemmerli
Level 1
Level 1

Hi,

On a Catalyst 6500, we configured a SPAN session with VLAN 300 as a source. We configured the session bi-directional ("both" keyword). We connect a sniffer on the SPAN destination port.

Strangely enough, we only see the traffic from the VRF to the firewall, but not the reverse traffic !

What can be the problem ?

Thank you for any help

Yves

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