New Private Network Detected (unknown network to me)

Recently installed Comodo Firewall, and it has found a new network that I am unaware of. I don’t know where it is coming from. the subnet mask is not the same as I am using, although close. Could I be under attack?

Any help would be appreciated

More info would be similarly appreciated. :wink:

Did you happen to jot down the new network number? Would it have been something like 169.254.X.X?

If so, this is an automatically assigned address that is used when a network card can’t receive an address from a DHCP server.

Ewen :slight_smile:

I did jot it down, the ip address/mask is

All addresses in the 169.254.X.X network range are assigned internally when a system cannot obtain an address from a DHCP server. I recommend that you accept this network, if onoy to get rid of the alerts. It is not a security issue to have global rules allowing traffic within the 169.254 address space.

Ewen :slight_smile: