| Junior Member with 24 posts. | | Join Date: Jun 2006 Experience: Int-Adv Networking/2Wire! | |
Defaults may vary by ISP, but the IP address settings based on firmware version are:
3.5.x and prior (I think Bellsouth models may have used 192.168.x.x version of this):
- 172.16.0.1 IP Address
- 255.255.0.0 Subnet Mask
- 172.16.1.33-254 DHCP Range
3.7.x and newer:
- 192.168.1.254 IP Address
- 255.255.255.0 Subnet Mask
- 192.168.1.64-253 DHCP Range
I know for example that Qwest uses different settings on their 2700's:
- 192.168.0.1 IP Address
- 255.255.255.0 Subnet Mask
- 192.168.0.64-254 DHCP Range
Anything within the subnet that is not part of the DHCP range is available for statically-assigned computers, to avoid possible IP conflicts. The HomePortals identify computers based on MAC address, so they will tend to keep pulling the same IP address.
Also, in general, TerryNet's solution works beautifully. If DHCP on the unit has been disabled, I've also had some luck with doing arp -a from the command line after rebooting the computer and router to get the IP address it is using. It's a little faster and easier than installing Ethereal/WireShark, if not as reliable...
Hope this helps,
extrados |