I changed DSL providers for my home, and wanted to get the modem the new one was most comfortable with. For $50, I got the Motorola/Netopia 2210-02-10NA. What a mistake. I plugged it in, and got all four lights green, so I thought I was good to go. But then I looked at the IP address settings on the PC I plugged in to test, and DHCP had given me 192.168.1.1 from the ISP.
Tech support was quite helpful. "That's not the address we gave you; the modem is set to do address-translation firewalling by default, but I can walk you through changing it." After I picked my jaw off the desk, I asked if this was a huge pain in the ass for tech support and he replied "oh, yeah". We had to drill down three menus of the web GUI to change it to be a normal bridge.
(If you're not sure why this is so bad, remember that most home users will hang a NATed router on the DSL modem, and the vast majority of NATed routers have 198.168.1.1/24 as the default addresses on the NAT side. Those routers will go into serious conniptions when they see the same frigging address space on both the internal and external interfaces.)
Dear Motorola: This has to the stupidest thing I have seen on a modem. Does no one in the Netopia division understand the first thing about routing? Can you fire whomever thought that this was a sensible default? The current setting is only useful when attaching a single computer to the modem; anyone else will be silently screwed by your default configuration.
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