Problem with configuration ProxmoxVE and Sophos Firewall

Peghasos

New Member
Mar 21, 2025
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I have a router whit IP 192.168.15.1/24 (DHCP Off), no policy, no rules, no route, no firewall or security system.

I have a PC (real) with static IP 192.168.15.100/24 - GW 192.168.15.1. (My PC).
I have a Secondary PC (real - mini-PC) with 2 interface eth - (esp1s0, esp2s0)
The esp1s0 id bridged with vmrc0 (WAN) --> cable on router.
I have installer Proxmox on the Secondary PC. IP 192.168.15.2/24 GW: 192.168.15.1 / Firewall disable.
The esp2s0 if turned Off. (No Cable).
On ProxmoxVE i have 2 VM ----> VM1-Sophos / VM1-Linux

VM1-Sophos: Sophos Firewall XG: (default conf) + DHCP On
WAN: PortA: IP 192.168.15.10 24 GW: 192.168.15.1 on vmrc0 (bridge esp1s0)
LAN: PortB: (vmrc1) :IP 172.16.10.1/24 GW: 172.16.10.1 DHCP On range 172.16.10.50 - 172.16.10.200/24

VM1-Linux: Linux
LAN: (vmrc1): IP 172.16.10.50/24 (DHCP) (DHCP is OK)

On my real PC ping the Secondary PC (Proxmox VE) --> ping 192.168.15.2 --> OK
Proxmox VE ping 192.168.15.100 --> Ok.

-------------------

On Proxmox shell:

Ping 192.168.15.1 -> Ok
Ping 192.168.15.100 (my PC) --> OK
Ping 8.8.8.8 (google) --> OK.
Ping 192.168.15.10 (WAN Sophos) --> OK.
Ping 172.16.10.1 (LAN SOPHOS) --> OK
Ping 172.16.10.51 (VMLinux on Proxmox) --> OK.

On VM2-Linux shell:
Ping 192.168.15.1 -> Ok
Ping 192.168.15.100 (my PC) --> OK
Ping 8.8.8.8 (google) --> OK.
Ping 192.168.15.10 (WAN Sophos) --> OK.
Ping 172.16.10.1 (LAN SOPHOS) --> OK
Ping 172.16.10.51 (VMLinux on Proxmox - local) --> OK.

On VM1-Sophos shell:
Ping 192.168.15.1 -> Ok
Ping 192.168.15.100 (my PC) --> OK
Ping 8.8.8.8 (google) --> OK.
Ping 192.168.15.10 (WAN Sophos) --> OK.
Ping 172.16.10.1 (LAN SOPHOS) --> OK
Ping 172.16.10.51 (VMLinux on Proxmox) --> OK.

**********************************************

I have the follow problem:

On MY PC (real) with static IP 192.168.15.100/24 - GW 192.168.15.1

Ping 192.168.15.1 -> Ok
Ping 192.168.15.100 (my PC) --> OK
Ping 8.8.8.8 (google) --> OK.
Ping 192.168.15.10 (WAN Sophos) --> NO
Ping 172.16.10.1 (LAN SOPHOS) --> NO
Ping 172.16.10.51 (VMLinux on Proxmox) --> NO.

Where am I going wrong?
 
Have you configured any firewall rules?
Have you done any routing as you are being talking about different IP ranges?
Solved.

I had to disable the DHCP on router before continuing to configure proxmox because it conflicted with the esp2s0 port.

Tnx