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Showing posts from November, 2010

Netcomm NB8WVPN and the Netgear DG834

After the woes I've experienced with the DG834 I cast about looking for a replacement device. It needed to be a decent ADSL 2+ router (with built in modem) and support site-to-site VPN tunnels - none of this VPN pass through garbage. After looking around a bit, I found the NB8WVPN from Netcomm which promises all sorts of things about how wonderful it is etc etc. So I purchased two and set them up at one of my problem sites - both ends. Now each of these sites has an Alcatel-Lucent phone system that use a VOIP link to put calls through to each other. Naturally this VOIP link has to go across a VPN. With the VPN established between the two sites, I had some connectivity between them - that is, I could ping and browse the network etc but the phone systems couldn't talk to one another. The initial part of the VOIP signalling goes through, but the call itself doesn't. Remarkably frustrating I must say. After alterations to the phone systems (and I must add: the VOIP worked perfe

Netgear DG834 woes

For quite some time I've used the Netgear DG834 as my router of choice, particularly as a low end router providing easy site-to-site VPN's. These little white routers will support up to 5 VPN tunnels and have proven themselves to be quite reliable under most circumstances. Unfortunately, I think I've discovered the circumstances that these routers do not work well under. I have two sites under my management that have had no end of trouble with these routers. Here is the situation and the symptoms: both sites are ADSL2 both sites have a single VPN connection to them as the responder both sites have appropriate ADSL2+ capable filters and short cables etc both sites drop their ADSL connection (not line sync) after 13 to 16 days and then fail to reconnect. A restart of the device (soft or hard) and the connection will stay up for anywhere between 5 and 16 minutes - whatever the time length is, it will always die after that time e.g. if it's 10 minutes, then it will lose co