In our office network we have a VPN setup to our datacenter. We are using a Sonicwall NAS. The VPN works fine for most cases. From our office we can connect to the servers in our DC but if I were to remote into a server in the DC and try to ping a local host then the requests time out.
We also have site-to-site tunnels between two other offices and if I remote into a machine in any of those two offices I can ping local machines.
So let's say we have our 4 networks which are as follows:
- 10.10.10.0/24 (DataCenter)
- 192.168.0.0/24 (Office 1)
- 192.168.1.0/24 (Office 2)
- 192.168.2.0/24 (Office 3)
Then the issue is that:
- DataCenter can talk to: Office 1, Office 2
- Office 1 can talk to Office 2, Office 3, DataCenter
- Office 2 can talk to Office 1, Office 3, DataCenter
- Office 3 can talk to DataCenter, Office 1, Office 2
I can't figure out why DataCenter can't talk to Office 3. As far as I can tell, all 3 tunnels are configured the same way and there is no non-standard/automatic routes, NAT rules, or firewall rules.
Unfortunately, I don't have access to the DG at the DC so I can't see the table, but the routes look like this:
Tracing route to 192.168.1.1 over a maximum of 30 hops 1 1 ms <1 ms <1 ms 10.10.10.1 2 9 ms 10 ms 9 ms 192.168.1.1 Tracing route to 192.168.2.1 over a maximum of 30 hops 1 <1 ms <1 ms <1 ms 10.10.10.1 2 * * * Request timed out. 3 * * * Request timed out. 4 * * * Request timed out. ... 30 * * * Request timed out.