Proxmox unreachable when connected to a switch / mikrotik

enzzo

New Member
Oct 11, 2023
1
0
1
I have a strange situation confirmed on 2 servers.
IP address 10.0.0.10/24 set to interface vmbr1, no gateway.A computer with IP address 10.0.0.20 /24 connected to this server's network card can ping 10.0.0.10.
Similarly, a mikrotik connected to this interface can ping 10.0.0.10. If the computer is connected to mikrotik (bridge interfaces)/switch, pings to the address 10.0.0.10 do not go.
But strangely 10.0.0.10 can ping 10.0.0.20 which is behind mikrotik. Not the other way around.
Other devices in the LAN from this address class connected to Mikrotik ping from the 10.0.0.20 address without any problems, only the Proxmox IP does not work.
arping from computer 10.0.0.20 to 10.0.0.10 goes without a problem and shows the MAC of the vmbr1 interface
firewall on mikrotik disabledCan it matter that there is a virtual machine on Proxmox that also has IP addresses from the 10.0.0.x /24 pool?
 

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