Sunday, June 7, 2020

VPN into VPN - Zscalar

I have a problem I cannot figure out.

Topology:

External Location -> zscaler VPN ->OpenVPN (SSL) to Lab network

I get an IP in the expected range on the LAB network. I can ping and even port scan all hosts, but I cannot open them in a browser or ssh into them. I've tied http://IP, https://IP. These hosts are everything from EdgeMax to vCenter.

When I'm physically at work I only use the OpenVPN to access the lab network and everything works fine. The problem only comes when I also have to VPN into the corporate network.

The LAB's "WAN" IP is not exposed to the internet so there is no possibility to use this directly. I guess I could forward ports for each host to the LAB WAN IP, but that is a janky fix at best.

Please don't tell me to ask IT again :(

Any ideas how to approach this problem?



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