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qllc to sdlc conversion

I'm trying to do QLLC TO SDLC conversion for this setup:

Remote units using SDLC PADs to access a public x.25 network come to a x25 access in a Cisco router. From the router I have an SDLC connection to the Host.

It is working fine for one device, but I cannot make it working for 2 remote units at the same time. I cannot define more than 1 partner under the "qllc dlsw vmacaddr 0302.0302.10c1 3 partner 0303.0303.10c1". I know that I can use the subaddress field but this will not help as all the remote devices are calling the same addresses and there is no subaddress field.

Please advice,



version 11.2

service timestamps debug datetime

service timestamps log datetime

service password-encryption

no service udp-small-servers

no service tcp-small-servers


hostname QLLC_TEST


enable secret 5 <removed>

enable password 7 <removed>


no ip routing

source-bridge ring-group 999

dlsw local-peer


interface Serial0

no ip address

encapsulation x25

no ip route-cache

no ip mroute-cache

x25 address 99999999

x25 htc 5

x25 win 3

x25 wout 3

x25 ips 256

x25 ops 256

x25 map qllc 0302.0302.10c2 22222222 accept-reverse

x25 map qllc 0302.0302.10c3 33333333 accept-reverse

x25 map qllc 0302.0302.10c1 11111111 accept-reverse

qllc dlsw vmacaddr 0302.0302.10c1 3 partner 0303.0303.10c1


interface Serial1

no ip address

encapsulation sdlc

no ip route-cache

no ip mroute-cache

no keepalive

clockrate 2400

sdlc role secondary

sdlc vmac 0303.0303.1000

sdlc address C1

sdlc partner 0302.0302.10c1 C1

sdlc address C2

sdlc partner 0302.0302.10c2 C2

sdlc address C3

sdlc partner 0302.0302.10c3 C3

sdlc dlsw C1 C2 C3


interface TokenRing0

no ip address

no ip route-cache

no ip mroute-cache


ring-speed 16


no ip classless

logging buffered 80000 debugging

bridge 1 protocol dec


line con 0

password 7 <removed>


line aux 0

line vty 0 4

password 7 <removed>




Cisco Internetwork Operating System Software

IOS (tm) 2500 Software (C2500-IS-L), Version 11.2(15a)P, P RELEASE SOFTWARE (fc1


Copyright (c) 1986-1998 by cisco Systems, Inc.

Compiled Tue 25-Aug-98 00:28 by kpma

Image text-base: 0x03030170, data-base: 0x00001000

ROM: System Bootstrap, Version 11.0(10c)XB1, PLATFORM SPECIFIC RELEASE SOFTWARE


BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c)XB1, PLATFORM


QLLC_TEST uptime is 5 days, 8 hours, 1 minute

System restarted by power-on at 09:01:00 UTC Thu Jun 27 2002

System image file is "flash:c2500-is-l.112-15a.p", booted via flash

cisco 2525 (68030) processor (revision J) with 6144K/2048K bytes of memory.

Processor board ID 08868334, with hardware revision 00000000

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

1 Token Ring/IEEE 802.5 interface(s)

2 Serial network interface(s)

5-in-1 module for Serial Interface 0

5-in-1 module for Serial Interface 1

32K bytes of non-volatile configuration memory.

8192K bytes of processor board System flash (Read ONLY)

Configuration register is 0x2102


Re: qllc to sdlc conversion

I do not see any way you can do this without using subaddresses which will enable you to map to multiple partner mac addresses.

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