vm use /22 netmask can not ping other

[ccddtt]

HI,sorry for my poor english。
I have a proxmox 6.2 server,set ip :192.168.103.110/255.225.252.0
in the server have a vm,centos7,set ip :192.168.101.212/255.255.252.0
the vm can ping physical server(103.110),and 192.168.100.1(a switch)
but can't ping other IP.......
Are there any hint settings? Thanks.

 

[oguz]

hi,

what is your gateway for that vmbr0 interface?

can you reach your gateway IP from inside the centos7 VM?

 

[ccddtt]

Hi,thank you reply。
my vmbr0 is not set any gateway.

 

[bobmc]

1. can your proxmox 6.2 server (192.168.103.110) ping other IP like google.com?
2. can you post your etc/network/interfaces file?