Tag Archives: span

Cisco ASA: Firewall rule testing before deployment

Introduction You want to segregate the network between users and servers network. Both the users and servers network is using the same subnet, to reduce the changes while implementing firewall and to test the firewall before it is deployed … Continue reading

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SPAN and VSPAN demonstration

VSPAN monitor session 1 source vlan 1 rx monitor session 1 destination interface Fa0/22 Cat3550 has its limitation of only monitoring traffic received by Vlan. The destination port is at fa0/22. I connected my pc to fa0/22 and turned on … Continue reading

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Characteristics of VSPAN

Recently I am doing mass configuration of WS3750-24G switches. The final configuration is different from the initial configuration which I have done for the PoC. Customer has wanted a VSPAN and want to be monitored from interface gi1/0/21 to 22, … Continue reading

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2950-1(config)#monitor session 1 source interface fa0/9 – 24 both 2950-1(config)#monitor session 1 destination interface fa0/8 Wow… WS-2950-24-TS can really monitor so many ports on both directions? My WS-3550-24TS cannot do this… it can only allow one physical to be monitored … Continue reading

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