From: Padhu (LFG) (padhu@xxxxxxxxxxxx)
Date: Sun Aug 05 2001 - 18:06:34 GMT-3
Thanks so much Brian and Afiddler for your response. Excellent
explanation.Appreciate it. I am glad i wasn't missing an unknow ipx
offsetlist to get this working.
Cheers,Padhu
-----Original Message-----
From: Brian Hescock [mailto:bhescock@cisco.com]
Sent: Sunday, August 05, 2001 7:48 AM
To: Padhu (LFG)
Cc: 'ccielab@groupstudy.com'
Subject: Re: IPX Maximum hops - Last try !
It only works with ipx routes, not saps, which I've verified through
testing, internal
information, and some colleagues on the team that works with ipx more often
than I do.
Given that, I'm awaiting a reply from our developers as to why they would
ever code "ipx
maximum-hops" command. Because by itself an ipx route is useless unless all
you what to
do is ping; you need the sap to be able to do anything. And if you use a
tunnel so you
can get the saps then you don't need ipx maximum-hops. I'll let you guys
know if I ever
find anything out as to why they even coded ipx maximum-hops given those
facts, perhaps
there's something I'm missing and everyone else I've talked to is missing as
well.
Brian
"Padhu (LFG)" wrote:
> Last attempt post before it goes to trash.....
>
> Whenever i create a IPX sap with a hop count of 14 it traverses to
> the next hop and not beyond that.(its15 now) ..so its working the fine
> so far . Now i originate these saps in NLSP or eigrp and send it to the
> next router with hop count of 15. By default i would drop it...so now i
> code ipx maximum hop count to 100..so that it considers 100 as its
> "inifinity"..but still it drops once it reaches a hop count of 16 as it
> traverses the
> routers. Infact i tried this with all nlsp routers and ipx maximum hop set
> to 100 .
>
> I am sure there are large IPX networks spanning more than 15 hops in real
> world and wondering
> how the server wil be accessed beyond a hop count of 15. We are talking
> about IPX NLSP and EIGRP here and i have no network all under ipx router
rip
> just to make sure its not learning via rip.
>
> Anyone has any ideas ?
>
> Alternatives exist in the form of a tunnel ...but whats the right fix
rather
> than work around it ?
>
> Cheers,Padhu
>
> -----Original Message-----
> From: Padhu (LFG)
> Sent: Sunday, July 22, 2001 11:37 AM
> To: 'ccielab@groupstudy.com'
> Subject: IPX Maximum hops & NLSP to EIGRP redistribution
>
> I have a ipx lab setup with NLSP and EIGRP running on R2. There are router
> running eigrp behind R3. On R3 mutual redistribution between NLSP and
EIGRP.
>
> problem 1:
>
> I am trying to test sap filterng with distribute-sap-list. All saps with
> hops counts less than 14 make to the rest of the network. I configured ipx
> maximum-hops to 250 on all routers so that they consider saps above 16
also
> as valid. ( Pls note i am running eigrp and nlsp not ipx rip)
> however debug ipx sap events and activity shows that these saps get
dropped
> beyond r3 bcos of hop count greater than 16 even though all routers have
the
> ipx maximum-hops to 250 . Has anyone encountered this problem ? I am
running
> 12.0(14) ...
>
> NLSP EIGRP
> R1<--------------->R2<----------------->R3
>
> also R3 is originating a few file and print server saps. I want R2 to send
> only all file server saps from any network beyond r3 to be sent to R1.
> so i have a sap filter on r2
> ipx router nlsp
> distribute-sap-list 1001 out eigrp
>
> acl 1001 permit -1 04
>
> however i see this filter not working. however if i do
> ipx router nlsp
> distribute-sap-list 1001 in
>
> this works .
>
> appreciate any help here . Thanks .
>
> Cheers,Padhu
> hostname R1
> !
> logging buffered 8092 debugging
> enable password cisco
> !
> ipx routing 0001.0001.0001
> ipx internal-network 1000
> ipx maximum-hops 100
>
> interface Ethernet0
> ipx network 1001
>
> interface Serial1
> ipx network 7001
>
> ipx router eigrp 100
> network all
> !
> !
> ipx router rip
> no network all
> !
> !
> ipx sap 4 R1FILESERVER 1000.0001.0001.1234 451 15
> ipx sap 7 GOODSAP 1001.0000.0c38.1234 451 14
> ipx sap 7 R1PRINTSERVER 1001.0000.0c38.1234 451 15
>
> R1#sh ipx serv
> Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + =
detail
> U - Per-user static
> 3 Total IPX Servers
>
> Table ordering is based on routing and server info
>
> Type Name Net Address Port Route Hops
Itf
> S 4 R1FILESERVER 1000.0001.0001.1234:0451 conn 15
Int
> S 7 GOODSAP 1001.0000.0c38.1234:0451 conn 14
Et0
> S 7 R1PRINTSERVER 1001.0000.0c38.1234:0451 conn 15
Et0
> R1#
> R1#sh ipx eigrp nei
>
> IPX EIGRP Neighbors for process 100
> H Address Interface Hold Uptime SRTT RTO Q Seq
> (sec) (ms) Cnt Num
> 0 7001.0007.0007.0007 Se1 10 00:16:32 17 200 0 10
>
----------------------------------------------------------------------------
-------
> R1#sh ver
> Cisco Internetwork Operating System Software
> IOS (tm) 2500 Software (C2500-JOS56I-L), Version 12.0(14), RELEASE
SOFTWARE (fc1
> )
> Copyright (c) 1986-2000 by cisco Systems, Inc.
> Compiled Tue 31-Oct-00 22:06 by linda
> Image text-base: 0x030581DC, data-base: 0x00001000
>
> ROM: System Bootstrap, Version 4.14(9.1), SOFTWARE
>
> R1 uptime is 10 hours, 31 minutes
> System restarted by reload
> System image file is "flash:/c2500-120-14.bin"
>
> cisco 2500 (68030) processor (revision L) with 14336K/2048K bytes of
memory.
> Processor board ID 01514874, with hardware revision 00000000
> Bridging software.
> X.25 software, Version 3.0.0.
> SuperLAT software (copyright 1990 by Meridian Technology Corp).
> TN3270 Emulation software.
> Basic Rate ISDN software, Version 1.1.
> 1 Ethernet/IEEE 802.3 interface(s)
> 2 Serial network interface(s)
> 1 ISDN Basic Rate interface(s)
> ipx routing 0007.0007.0007
> ipx internal-network 7000
> ipx maximum-hops 100
>
> interface Serial0/0
> ipx network 7001
> no fair-queue
>
> ipx router eigrp 100
> network all
> !
> !
> ipx router rip
> no network all
>
----------------------------------------------------------------------------
-----
> Only 1 sap from R1 makes it to here ..Other 2 get dropped bcos of hop
count 16
>
----------------------------------------------------------------------------
------
> BB4#sh ipx se
> Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + =
detail
> U - Per-user static
> 1 Total IPX Servers
>
> Table ordering is based on routing and server info
>
> Type Name Net Address Port Route Hops
Itf
> E 7 GOODSAP 1001.0000.0c38.1234:0451 2195456/00 15
Se0/0
>
----------------------------------------------------------------------------
----------
> BB4#sh ve
> Cisco Internetwork Operating System Software
> IOS (tm) C2600 Software (C2600-JS56I-M), Version 12.0(14), RELEASE
SOFTWARE (fc1
> )
> Copyright (c) 1986-2000 by cisco Systems, Inc.
> Compiled Tue 31-Oct-00 23:00 by linda
> Image text-base: 0x80008088, data-base: 0x80BD9B88
>
> ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
>
> BB4 uptime is 1 week, 2 days, 17 hours, 37 minutes
> System restarted by reload
> System image file is "flash:c2600-120-14.bin"
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