Re: NLSP and IPXWAN

From: Fred Ingham (fingham@xxxxxxx)
Date: Tue Aug 20 2002 - 17:26:46 GMT-3


   
The IPXWAN network number is only used in the ipxwan packet exchanges and
does not get propagated. The network number can be different on either end
. The router that is the master will dictate the actual network number used
in the exchange.

For instance, R1 is configured as ipx ipxwan a1 14 R1, R4 is configured as
ipx ipxwan a4 144 R4, NLSP is enabled, RIP/SAP are disabled. R4 with the
higher internal address (a4 vs. a1) will become the master and will dictate
that 144 is the network number to be used in ipxwan packets. In the R1 ipx
route table, 144 is the W network. From R1 an IPX ping to
144.0000.00a4.0000 works as does a ping to 144.0000.00a1.0000 in the other
direction. Use sh ipx interface to see the addresses and the master-slave
relationship.

R3 is another NLSP router and does not see either 14 or 144 as you observed
in your original note. This is normal.

Debug below captured on r4.

1w0d: IPXWAN: Rcv TIMER_REQ on Serial0.14/A4:144, NodeID A1, Seq 0
1w0d: IPXWAN: Send TIMER_REQ [seq 1] out Serial0.14/A4:144
1w0d: IPXWAN: offer TIMER_REQ routing options NLSP
1w0d: IPXWAN: Rcv TIMER_RSP on Serial0.14/A4:144, NodeID A1, Seq 1, Del 38
1w0d: IPXWAN: Rcv TIMER_RSP accept as MASTER NLSP on Serial0.14
1w0d: IPXWAN: state (Sending Timer Requests -> Master: Sent Throughput)
[Serial0
.14/A4:144 (Received Timer Response as master)]
1w0d: IPXWAN: Send NLSP THROUGHPUT [seq 0] out Serial0.14/A4:144
1w0d: IPXWAN: Rcv THROUGHPUT response from Serial0.14/A4:144, NodeID A1, Seq
0
1w0d: IPXWAN: Send NLSP THROUGHPUT [seq 1] out Serial0.14/A4:144
1w0d: IPXWAN: Throughput size 576 delta 64000
1w0d: IPXWAN: Rcv THROUGHPUT response from Serial0.14/A4:144, NodeID A1, Seq
1
1w0d: IPXWAN: state (Master: Sent Throughput -> Master: Sent Delay)
[Serial0.14/
A4:144 (Received Second Throughput Response )]
1w0d: IPXWAN: Throughput size 576 delta 64000
1w0d: IPXWAN: Send NLSP DELAY [seq 0] out Serial0.14/A4:144
1w0d: IPXWAN: Rcv DELAY_RSP from Serial0.14/A4:144, NodeID A1, Seq 0
1w0d: IPXWAN: Send NLSP DELAY [seq 0] out Serial0.14/A4:144
1w0d: IPXWAN: Rcv DELAY_RSP from Serial0.14/A4:144, NodeID A1, Seq 0
1w0d: IPXWAN: Rcv DELAY_RSP Delay1 384, Delay2 372, thru 72000
1w0d: IPXWAN: state (Master: Sent Delay -> Master: Sent Router Info)
[Serial0.14
/A4:144 (Received Second Delay Response)]
1w0d: IPXWAN: Send ROUTING_INFO_REQ [seq 0] out Serial0.14/A4:144
1w0d: IPXWAN: NLSP delay 1000000, throughput 72000
1w0d: IPXWAN: Rcv ROUTING_INFO_RSP from Serial0.14/A4:144, NodeID A1, Seq 0
1w0d: IPXWAN: NLSP delay 1000000, throughput 72000
1w0d: IPXWAN: state (Master: Sent Router Info -> Master: Connect)
[Serial0.14/A4
:144 (Received Router Info Rsp as Master)]

This follows the diagram on p.447 of Chappell, Novell's Guide to LAN/WAN
Analysis: IPX/SPX

Hope this answers your original question.
Fred
----- Original Message -----
From: "ccie candidate" <ccie1@lycos.com>
To: "ccie candidate" <ccie1@lycos.com>; <ccielab@groupstudy.com>; "Fred
Ingham" <fingham@cox.net>
Sent: Tuesday, August 20, 2002 12:29 AM
Subject: Re: NLSP and IPXWAN

> ok i would do the same .
> however my question was about the network assigned by the IPXWAN command
>
> ipx ipxwan 0 16 R1
>
> where 16 is the assigned network for the link by the command ( or i
understand it like that )
>
> this network shows in the routing table as "W" however it dont propagate
with NLSP
>
> any comments
>
>
>
> --
>
> On Mon, 19 Aug 2002 23:08:54
> Fred Ingham wrote:
> >The configuration guides still have ipxwan as a configuration step in
> >enabling ipx nlsp over a point-to-point serial interface. It works
without
> >the ipxwan but the costs are different when configuring with ipxwan and
when
> >just using ipx enable nlsp. If asked to configure it I would use
ipxwan.
> >When using ipxwan there is no network number assigned to the interface.
> >
> >Fred
> >----- Original Message -----
> >From: "ccie candidate" <ccie1@lycos.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Monday, August 19, 2002 11:40 AM
> >Subject: NLSP and IPXWAN
> >
> >
> >> folks;
> >> when running nlsp over wan (serial ) one must use ipxwan ...right ??
> >>
> >> i read this somewhere multiple times ...i beleive it is right unless
> >someone has different opinion .
> >>
> >>
> >> when i config ipxwan i noticed that the network of the ipxwan link
didnt
> >show up in the far end routers ..is this normal ???
> >>
> >>
> >> say
> >> R1-----R2------R3
> >>
> >> R1R2 connection is serial running ipxwan ,while R2R3 is ethernet.
> >>
> >> on r1
> >> int ser 0
> >> ipx ipxwan aa 12 r1
> >> !
> >> on r2
> >> int ser 0
> >> ipx ipxwan bb 12 r2
> >> !
> >>
> >> now NLSP is running for R1 ,R2,R3
> >>
> >>
> >> on R3 , the network 12 didnt show up ..however the internal network AA
and
> >BB showed normally ...
> >>
> >>
> >> is this normal ?
> >>
> >>
> >>
> >>
> >>
> >>



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