Proxmox Network Issues

[capnmooseknuckle]

Hello All,

Cant seem to get Proxmox to talk properly to our network and suspect an OS issue. I am a first time user so please bare with. Verified NIC/cable is working and can see in iDRAC that it is linked. I appreciate any insight that one may provide.

Trying to use the copper connection = eno2 and cant even ping the gateway from within.

 

[shanreich]

Is the subnet mask of your CIDR correct? (the 32 in 10.101.2.7/32). If you wanna use a gateway outside of the subnet then you would have to add an explicit route, but I doubt that is what you want in the first place, hence why I am asking/

 

[capnmooseknuckle]

Thanks for the reply. The subnet is correct and the gateway is within. I initially intended to use the fiber but had issues with the SFP so Im not sure if something got buggered along the way. Debating a fresh install but would like to troubleshoot to gain a better understanding

 

[shanreich]

10.101.2.1 is not within 10.101.2.7/32 because /32 is only a singular IP address. Did you maybe mean /24 ?

 

[capnmooseknuckle]

Thanks, still fails after reboot. Should I try a ifdown/up -a?

 

[shanreich]

Is there any firewall inbetween or on the host? Is /24 the actual correct subnet (was just a guess of mine, would be good to verify)

Can you send me the output of the following commands?

ip a
ip route show

 

[capnmooseknuckle]

I havent enabled a fw on the host and shouldnt be one in between host/gw. Here is the cmd output:

 

[shanreich]

network configuration seems good now, so I'd assume the problem lies most likely somewhere in the network itself. Have you double-checked whether the IPs / config are correct?

 

[louie1961]

Is the network segregated into VLANS?

 

[capnmooseknuckle]

@louie1961 yes, but the ports are configured correctly AFAIK. They were working on the old windows host and its the same hardware/connection. Anything you would suggest checking? Thanks for your reply

 

[louie1961]

You need to adjust /etc/network/interfaces file to make proxmox vlan aware. Something like this:

auto lo
iface lo inet loopback

iface en0xxxxa inet manual

auto vmbr0.100
iface vmbr0.100 inet static
address 192.xxx.xxx.xxx/24
gateway 192.xxx.xxx.1

auto vmbr0
iface vmbr0 inet static
bridge-ports enx0xxxxa
bridge-stp off
bridge-fd 0
bridge-vlan-aware yes
bridge-vids 2-4092