Re: Routing problem...
Not all DSL connections require PPPoE.
With my provider, both at work, and at a user's home we have SDSL connections. The router we were provided works as if it were a real ethernet router. I just plug in a cable, configure my ip addresses and go. With this service I have not needed to use pppoe, nor mess with MTUs.
On Fri, Mar 23, 2001 at 09:55:13AM -0600, Robert Guthrie wrote:
> I'm not going to tell you how to configure the routing of the firewall, as
> I've never done it, but I will give you a very important tip for
> configuring you DSL connection.
> First, you'll likely need the pppoe package. Install it first. The
> instructions in /usr/share/doc/pppoe will tell you to edit a few files
> related to network connections. Go ahead and do what they say, but keep
> in mind that you need to migrate those changes into the new way of doing
> things (namely using /etc/network/interfaces for configuring your ethX and
> ppp0 devices).
> Note one very important thing with regards to pppoe and masquerading: you
> MUST set all computers on your private network (192.168.1.0) to have their
> network cards' MTU set to 1452. This is done under linux with the command
> "/sbin/ifconfig eth0 mtu 1452. I'd recommend putting this in
> /etc/network/interfaces. Here's an example of my entry for one of the
> MASQed computers (address 192.168.2.10):
> iface eth0 inet static
> pre-up /sbin/ifconfig eth0 mtu 1452
> address 192.168.2.10
> netmask 255.255.255.0
> broadcast 192.168.2.255
> network 192.168.2.0
> gateway 192.168.2.1
> Read up on "man interfaces" and "man ifup" and "man ifdown" to see how
> this works; in the future, all network devices will use these commands and
> configuration files to deal with network devices.
> For windows, you have to edit the registry to change this value. If you
> have Microsoft machines to configure, let me know and I'll send a mail
> from home explaining how to do this (I don't remember the exact entry, so
> I'll have to boot into windows and look at it).
> Much of this is mentioned in the DSL HOWTO, but it's not emphasised enough
> for people like me who tend to skim over documents.
> Good luck!
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