Re: Incoming PPP question - subnetting
On Thu, 18 Sep 1997 15:36:01 -0500, Jens B. Jorgensen wrote:
>Kevin Traas wrote:
>>
>> >Hmmm. What's the netmask on the ethernet interface? If it's set to
>> >255.255.255.224 then everything should work fine even though
>>
>> Yes, it is.
>
>Then NT's routing algorithm is wrong or there are other routes afoot.
>Run netstat -r on the NT box to verify that the routes to the
>ethernet interface have 255.255.255.224 as the netmask.
>
>> >the NT box sets 255.255.255.0 on the PPP link. This is because the
>> >routing algorithm chooses the route with the most matching bits (that
>> >is, the one with the longest netmask). Let me know.
>>
>> Interesting thought. I'll give this a try.
>>
>> I've got things working right now by setting up the PPP connection and then
>> manually setting routes on each end. However, if I can automate this, that
>> would be great.
>>
>> With your msg above, I may not have to make any changes on the NT
dialin
>> box/router. I'll let you know.
>>
>> On this subject, though.... Right now, the NT box dials into the modem pool
>> via PPP. Is there any way I can have the Linux box (PPP "server") setup a
>> static route to the NT subnet at the time the NT box dials in? (I could set
>> up a script running in the background with a sleep 60 or so that looks to
>> see who's logged in and configures the routing table based on that, but this
>> would be quite a "hack" - there's got to be a better way....)
>
>Sure, you can give pppd the path to an "ip-up" and an "ip-down"
>script which will be called when the connection comes up.
A much cleaner way would be to run portslave, the RADIUS client.
You will let you spec all of this on a per user and per port basis.
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