Friday, September 6, 2019

Passing one vlan traffic through another vlan

I am looking for a way that would allow users on vlan 3 (10.88.3.0/24) to look like they are in vlan 4 (10.88.4.0/24) when connecting to a remote site hosting a web server with the IP 10.34.45.1 .

The reason being that the remote site has a firewall rule that only allows access to their web server IP from traffic coming from vlan 4 and refuses to open traffic to it coming from vlan 3 because of a certain security policy. All network devices are Cisco based.

I tried routing vlan 3 traffic through vlan 4, but it’s getting blocked by the firewall since the source IP still shows up as being from vlan 3.

Any help would be greatly appreciated.



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