Re: (PM) OSPF over dialup link

John-David Childs (jdc@denver.net)
Sat, 17 Jan 1998 10:40:11 -0700

On Saturday January 17, 1998, Blaz Zupan <blaz@gold.amis.net>
had this to say about "(PM) OSPF over dialup link":

> I searched for this subject through the protmaster mailing list archive
> and could only find a couple of requests and MZ's answer that it is not so
> often requested as to warrant an engineering effort.
>
> Is that still so? Will OSPF over dialup work in 3.8?
>
> Just in case someone asks why this would be needed, how about a remote POP
> connected with frame relay and the frame link going down? I have a bunch
> of users using static IP's and subnets and they should be able to dial to
> any of the POP's. RIP just won't work in this application and static
> routing also won't, of course.

While OSPF over dialup links might be a "cool thing", the specific reasons
you cite in the last paragraph can ALREADY be done....by using appropriate
RADIUS entries.

First case: analog backup in case frame goes down: set up a radius entry
called (e.g.) "frbackup" which routes the appropriate subnet(s) to the
connection.

frbackup Auth-Type=System
Service-Type=Framed-User,
Framed-Protocol=PPP,
Framed-IP-Address=X.X.X.X,
Framed-IP-Netmask=255.255.255.224,
Framed-Route="X.X.X.0/27 X.X.X.1 1",
Framed-Routing=Broadcast,
Framed-Compression=Van-Jacobson-TCP-IP,
Framed-MTU=1500,
Port-Limit=1,
Idle-Timeout=0

Similar things can be done to route subnets to dialup customers without
requiring static routes all over the place :)

> Blaz Zupan, blaz@amis.net, http://www.amis.net/staff/blaz
> Medinet d.o.o., Linhartova 21, 2000 Maribor, Slovenia
>

-- 
John-David Childs (JC612)       Enterprise Internet Solutions
System Administrator            @denver.net/Internet-Coach/@ronan.net
  & Network Engineer            1039 S. Parker Rd. #I-8 Denver, CO 80231
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