My VOIP box is hijacking my network!
Posted on 2008-10-16
Can someone give me some advice here& my network is behaving real strangely, and as Ive had a few changes to it, Im not sure whats going on.
Background info (or skip to PROBLEM below).
Im using a Dlink DSL205T Modem with ADSL2 to access the internet, and a Linksys WRT54GS for Ethernet and wireless access. And also a small Linksys VOIP box for calls.
As Ive got Ethernet ports built into my house, I thought Id make use of them.
There are 4 ports in the downstairs office, and 4 ports upstairs (2 in the dining room, 1 in loungeroom, and 1 in bedroom).
Anyways I got it all working the LAN and internet, and it was going great. I plugged the router into the downstairs area, and upstairs the modem (via crossover cable) into the dining room port and patched the downstairs cable into my routers Internet port. This was all good.
**** PROBLEM ****
Ive been having the occasional internet disconnect and as I play poker it was starting to cost me money getting disconnected so much. So I did a bit of reading and figured I should upgrade the firmware on the Dlink modem. So I upgraded that. I also decided to try Tomato firmware (upgraded from DDWRT) on the Linksys.
Now this is where Ive started to have problems. When I boot up my laptops, either the downstairs one which is plugged direct into the Ethernet port of the router, or the upstairs laptop in loungerooom into the ethernet port, they are both assigned IPs in the 192.168.0.x range, where as before they were always assigned 192.168.1.x range. The ip of 192.168.0.1 is actually my VOIP box. So it kind of appears like my VOIP box is taking control of my network and assigning itself as the default gateway for my laptops and giving them IP addresses.
I can no longer access my modem on 10.1.1.1. OR my Linksys on 192.168.1.1
So to test it my theory if the VOIP box was being a hog, I unplugged it from the network and sure enough my internet and LAN all came back to life. So then I loaded up a game of poker and my internet drops out again! Dammit :(
My voip box is password protected by Engin so I cant get into it either.
How do i stop my voip box hogging my network?