Can someone enlighten me on how the below is possible?
I have a remote site, L2 connection to HQ. Clients are configured like this...
- Client (rc01) IP address 10.1.1.1/24
- Gateway 10.1.1.254/24 (The catch: I have no access or control of this device)
HQ Edge firewall details...
- internal 192.168.1.1/24
- external 18.104.22.168/30
HQ example server...let's call it hq01
- Gateway 192.168.1.1/24
When I run a tracert from rc01 -> hq01 the first response is from hq01. But if I do the reverse (hq01 -> rc01) the first response is from the internal interface of the hq firewall as expected.
How is rc01 finding hq01 without first going through a gateway?