Need to capture VLAN traffic on/through vCMP guest LTM
We have a Viprion 2200 series with several production and non-production guest LTMs (none of which are handling any production traffic yet and are connected only to a network segment for testing).
We are in need of capturing connections that run through the VLAN VIP of a guest LTM and to the pool on the back end. SSH into the management IP of the guest as root allows tcpdump (and to specify the VLAN): tcpdump -i VLAN-NAME. The only traffic picked up by the dump is the occasional eigrp multicast traffic hitting the outside.
We ping the VIP successfully and also telnet to a pool server (through the VIP) on a listening port, successfully (tcp OPEN), but none of this traffic is seen in the tcpdump capture.
If the capture is seeing the eigrp traffic on VLAN VLAN-NAME, and the VIP for the VLAN is reachable from the same outside client that telnets to the pool server (with the successful ping of the VIP also NOT seen in the tcpdump), what are we doing wrong vis a vis the tcpdump capture (for starters)?
ANY thoughts on this would be most appreciated.
Thanks much.