we were trying to connect our network via IPsec VPN to our headoffice in europe.
first try was a 19" rack computer with linux based firewall (ipcop) installed.
our techies configured and tested it, sent us the thing, we hokked it up, nothing would work anymore,
intranet was OK, it just would not connect to teh internet anymore.
TFN said linux is not supported is our problem.
next try was a linksys WRV200, we also got it preset and configured from germany alll necessary data was setup already according to the router we currently have (asus WL 500G).
we hooked it up, again no go. intranet fine again, but internet would not work.
we asked TFN to have a look at it - at least they could not blame linux anymore (even though its linix based) - and after they fumbled on the poor thing for 2(!!!) hours with 4 (!!!) people we could connect to teh outside world again, but
VPN dial from XP would not work, the connection would drop every couple of minutes
ipsec VPN tunnel from router would connnect but not even a ping would be possible
changed back to the old asus we bought here localy and teh VPN dial from XP works again at least…
this got me thinking a bit now:
since both routers were from germany and they would initially not even connect us to teh WWW i was wondering if there are different standards/protocols or whatever??
i updated the linksys’ firmware but no improvement. for whatever reason there seems to be some sort of unidentifiable problem…
has anyone where any experience with that kind of stuff?
we need to get a hardware based ipsec vpn connection working…
I brought a router from Taiwan to Mainland (D-Link D624), it worked well in Taiwan, but in mainland it continuously drops connection. Sometimes every minute, sometimes less often. I changed the external power adapter from 110V to 220V, but no change.
Just because a configuration works in one environment (your intranet) doesn’t mean it will necessarily work in another environment (the Internet) because there are significant differences in the two networks. Obviously, your configuration works on your intranet, but maybe you have to make adjustments for it to work on the Internet. I think you need to put a network analyzer at both ends of your network to look at how the connection is being established and also to see why connections are timing out. So, my advice is the same as Brendon’s: get someone who has networking experience and who understands IPSec to take a look.
Edit: Of course my suggestion may be totally off the mark. Networking is funny that way.
seems like it was the 50Hz / 60Hz problem.
we got a Dlink router now which we bought locally and that works now apparently.
thanks to all who answered and helped!
[quote=“Gelangweilt”]@shiner: that was a good hint:
i just checked: the linksys WRV200 is just 50Hz, the Asus has a PSU for 50/60Hz.
This could really be the reason maybe?[/quote]
Weird. I really can’t believe this is the problem. Those routers run on AC/DC adapters. The DC voltage (probably 9v DC) coming out of the adapter will be completely stripped of any 50 or 60 Hz before it reaches the router. Just doesn’t make sense, unless the adapter is somehow farking up, in which case a new one should solve your problems.
However, we’re talking about electronics and computer things here.As everyone knows, they have a mind of their own.
well the PSU for the linksys said 50Hz and we had to use it with a powerconverter to 110V too since the PSU was only 230V.
not 50-60Hz like the Asus we had or the new Linksys.
so it could be the reason for the constant connection dropping.
[quote=“Gelangweilt”]well the PSU for the linksys said 50Hz and we had to use it with a powerconverter to 110V too since the PSU was only 230V.
not 50-60Hz like the Asus we had or the new Linksys.
so it could be the reason for the constant connection dropping.[/quote]
I’d be interested to know what happens if you just replace the PSU then. They’re easy to get here, and pretty cheap.
i can’t believe a router would have a timing problem because of the supply voltage freq? surely it has to have a crystal timing lock somewhere? it is so dependent on frequency you’d think it was inconceivable to build one without.
if not, that’d quite possibly be the culprit. out of phase lockups after a few minutes.
[quote=“urodacus”]i can’t believe a router would have a timing problem because of the supply voltage freq? surely it has to have a crystal timing lock somewhere? it is so dependent on frequency you’d think it was inconceivable to build one without.
if not, that’d quite possibly be the culprit. out of phase lockups after a few minutes.[/quote]
I’ve seen power supplies just work badly, to the point were the device still seems to work fine, but has some weird issues. I wonder if this is the case here. I’m still having a hard time believing it though. Those PSUs are usually just a transformer (completely unaffected by a difference of 50Hz/60Hz), then put thru a bridge rectifier (again, unaffected), then smoothed out with capacitors (yet again, the frequency difference should have little affect). So unless some other regulating components are somehow affected, I really can’t understand this.
Right enough (sorry, I’m still a bit old-skool). Still shouldn’t make much difference though, but maybe it is just enough to affect it in some bizarre way. Maybe noise interference or something (which switching units are a bit notorious for) that had been nicely filtered out at 50Hz, but gets through at 60Hz. Who knows?
(even though its linix based) - and after they fumbled on the poor thing for 2(!!!) hours with 4 (!!!) people we could connect to teh outside world again, but
