EDIT#2: I think I found the cause of the issue: in /proc/net/vlan/config there is an old entry for vlan620 which links to bond0 (I was trying to do bonding originally) plus an old vlan620 file again tied to bond0.
I am running ubuntu 12.04. I have a desktop that has two ethernet cards. I would like to use one ethernet port (eth 1) for SSH connections or connecting to a LAN to access the internet. The other ethernet port is to use an ethernet IP camera.
I am having an issue where I can use SSH or the LAN on eth1 when I have the camera disconnected from eth0.