A Segunda, 29 de Agosto de 2011 19:44:50 Attila Kinali você escreveu: > On Mon, 29 Aug 2011 19:20:52 +0100 > > Gustavo Homem <[email protected]> wrote: > > Configuring their modem as a bridge will bring the public IP to the > > soekris box which makes port forwarding way easier, pushing most work > > (nat, routing) to a solid soekris box running a stable OS and less work > > to the cheap and perhaps not so stable modem you're using. > > This is not always desired and definitly not always stable. > I used such a > setup with an zyxel router/modem back in the old days. For some reason, the > zyxel would lock up once a month, not passing any packets anymore, while > all counters said that everything is normal and that it is indeed passing > packages trough it. The only way out of it was power cycling the bridge > (the reset function didnt help).
That means you have a bad modem ;) We use for example the Huawei MT882 which stays up for months (or more but there's allways a power outage eventually preventing a bolder result). > > Since then i'm using various PCI adsl cards with resulted in > 1) control over the status of the ADSL line (ie i know when the signal gets > worse) This is technically very interesting and no doubt very cool :-) Of course the decision to go this route depends a lot on the "business case". See below. > 2) control over the ADSL modem within the OS (aka easy reset by reloading > the drivers, which, interestingly was never necessary) > That doesn't help with remote site problems which is our major concern. For other cases there may be different concerns. > Which led to zero modem related downtime in the last 7 or 8 years. For our business case we found out that a certified (ie well tested...) ADSL external bridge would be the right trade off between stability and complexity and would suit better the operations for multiple remote customers using different technologies that can also operate on bridged mode (adsl, cable, dedicated circuits and the new GPON fiber services). Given so many different technologies we certanly don't want to look for an internal card for each one. This way we reuse the same soekris configuration which reduces diversity. Supporting a single technology over a *very large* number of sites, or having plain fun with hardware hacking :-) would take us your route, I guess. Cheers Gustavo -- Angulo Sólido - Tecnologias de Informação http://angulosolido.pt _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
