network question - is this unusual?

Anne Wilson annew at
Fri Jun 5 06:13:36 UTC 2009

On Friday 05 June 2009 00:51:12 Mikkel L. Ellertson wrote:
> Gerhard Magnus wrote:
> > I recently had to deal with my ISP about a connectivity problem that
> > turned out to be on their end. (The tech referred to linux as lie-nux
> > and insisted on doing everything in XP which I fortunately had
> > dual-booted.) But in the process of working through this it was
> > necessary for me to describe the way I'd set up my LAN here and he
> > seemed incredulous. This wouldn't bother me except that I've gotten this
> > reaction before from people in the outside world but never an
> > explanation. So I'm asking: is there something weird about this
> > structure? Is there some "better" or more standard setup?
> > 
> > The DSL modem Actiontec modem provided by Quest plugs into the phone
> > jack. The Actiontec is an older model with only one ethernet plug. Since
> > I have four boxes, two of which are dual booting Fedora and XP, I have
> > an ethernet cable connecting the modem to the DSL plug of a Linksys
> > router. I then have separate cables connecting the four outlets on the
> > router to each of the four boxes. (I did all this cabling at a time
> > before wireless routing was as available and cheap as it is today.)
> > 
> > Each of the six operating systems (4 linux and 2 XP) has a static IP
> > address and each has a firewall. I have NFS running on the linux
> > systems. There's another firewall on the router, which is currently
> > port-forwarding only ssh and torrent data from the outside world.
> > 
> > I thought I'd check this out before going further....
> > 
> Well, I only have 2 PCs and a printer with wired connections - the
> rest are wireless connections. I also have a virtual machine or two
> with a bridged connection. They all go through a Netgear wireless
> router. I have static addresses for most of the machines, but I did
> it using the dhcp server configuration. (If I change NICs, I have to
> change the dhcp server configuration.)
> About the only strange this is that I have 2 IP addresses set up for
> my laptop - one for the wired connection, and one for the wired
> connection. (3 if you count when it makes a VPN connection from
> somewhere else...)
Isn't it unusual to connect the modem to the DSL socket on the router?  The 
only time I've set up one where I had to use the supplied modem I used the 
router as a switch, connecting the modem to one of the LAN sockets.

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