On Wed, 23 Mar 2005 14:55:09 -0800, Paul Vaughan <pvaughan at san dot rr dot com> wrote:
> Two IP address for WAN
> My Internet ISP is my cable company. So, i connect through a cable
> modem. I setup a m0n0wall firewall behind the cable modem. I gets it's
> IP address via DHCP. When I go to the webGUI Configuration page under
> Status|Interfaces it lists the WAN interface as indicated below:
> Status up
> MAC address 00:xx:xx:xx:xx:xx
> IP address XX.YY.ZZZ.153
> Subnet mask 255.255.248.0
> Gateway XX.YY.ZZZ.1
> Why the two addresses? Gateway and IP.
The IP is your public IP, the gateway is its default gateway, i.e. the
> I can ping the gateway from outside the LAN but can't ping the IP
> address. What gives?
m0n0wall blocks ICMP by default so your WAN IP won't respond to pings.
Typically ISP's won't drop it on their routers.