interesting solution. certainly a CCIE level convoluted backwards and
therefore Lab type answer :-
OK, here is what I did.
On the hub router - must issue the no ipx default-route command. otherwise
you cannot assign the IPX address FFFE to an interface. also, in order
to advertise the default route only, one must still use the interface
command IPX advertise-default-route-only [network]on the appropriate
interface. otherwise, the default and all other networks will be advertised
on all spoke routers - configure as usual. the IPX default-route command
must be issued.
All routers then see the default route, and it is marked in their routing
tables as a default.
Final thought: I believe that the issue I reported - that no router directly
connected to the frame cloud can ping any other interface in the network,
even though downstreams can do so, and even though all routes are in the
routing tables - is a phenomenon associated with frame clouds in general.
the same thing happens with all IP routing protocols except OSPF and ISIS
( which are special cases ) I.e. any routing protocol, in a hub and spoke
setup on the physical interfaces of a frame cloud, one cannot ping from the
directly connected router. For IP one can use extended ping, and select a
different interface as the source, and pings work. Since the IPX extended
ping does not offer a means of using another interface as a source address,
I cannot test the theory.
In any case, thanks for the tip. Got something else for my bag of tricks.
Chuck
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Sasa Milic
Sent: Wednesday, September 19, 2001 10:54 AM
To: [EMAIL PROTECTED]
Subject: Re: CCIE level topic - IPX default route - very long [7:19715]
Explanation missing from first mail.
Basically, this router won't have default route. But, it will
advertise network -2 just as any other network it is connected
to. Downstream routers will recognize this as a default network
(but, they shouldn't have no ipx default-route in config).
Sasa
Sasa Milic wrote:
Sorry Chuck, cannot solve your problem. But, I've found
another way to inject default route:
no ipx default-route
!
interface Loopback0
ipx network FFFE
!
Sasa
Chuck Larrieu wrote:
In my review of frame relay, I am examining every routing protocol over
a
frame cloud in a hub and spoke setup. IPX is the topic of the day, and I
thought I was so clever when I devised this scenario. I was writing this
post well before I ran into The Problem.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=20750t=19715
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