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DLSW+ Ethernet to Ethernet

0btempleton
Level 1
Level 1

Trying to get DLSW+ to transport Netbeui from one Ethernet segment to another. This is a lab environment so I can freely mess with the configurations. On each Ethernet network there are two PCs running Netbeui. On each network the PCs can map to shares on the other PC on their network. The PCs cannot see the PCs on the other network although the routers have all the PC's Netbios names in their DLSW reachability displays.

The routers seem to peer with no problem. No circuits appear to have ever been build between the routers. I think I am missing something simple.

Here is a cut and paste of a partial router config.

!

dlsw local-peer peer-id 172.17.11.5 promiscuous

dlsw bridge-group 12

!

process-max-time 200

!

interface Loopback0

ip address 172.17.11.5 255.255.255.255

!

interface Ethernet0

ip address 172.17.10.5 255.255.255.0

media-type 10BaseT

!

interface Ethernet1

ip address 192.168.246.5 255.255.255.0

media-type 10BaseT

bridge-group 12

bridge-group 12 input-lsap-list 212

!

access-list 212 permit 0xF0F0 0x0101

Note that I have tried it with and without the access list.

8 Replies 8

t.akin
Level 1
Level 1

I think the bridge-protocol is missing (ibm or ieee).

It was in the config, just not in the part that I cut and pasted.

bridge 12 protocol ieee

is it possible to show me the both configuration of the dlsw-routers?

Here are the sanitized configs for both routers.

!

! Last configuration change at 14:54:58 EST Tue Jan 14 2003 by templba

! NVRAM config last updated at 12:54:55 EST Tue Dec 10 2002 by templba

!

version 11.2

service timestamps debug datetime msec localtime show-timezone

service timestamps log datetime msec localtime show-timezone

service password-encryption

no service udp-small-servers

no service tcp-small-servers

!

hostname TST2RTR006

!

aaa new-model

aaa authentication login default tacacs+ line

aaa authentication login NO-TACACS line

aaa authentication enable default tacacs+ none

aaa authentication ppp default local

enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

enable password 7 xxxxxxxxxxxxx

!

partition flash 2 4 4

!

ip subnet-zero

no ip source-route

ip telnet source-interface Loopback0

ip tftp source-interface Loopback0

ip tacacs source-interface Loopback0

no ip bootp server

no ip domain-lookup

ip domain-name piedmontng.com

ip name-server 172.16.1.20

ip name-server 172.16.1.3

clock timezone EST -5

clock summer-time EDT recurring

dlsw local-peer peer-id 172.17.11.6

dlsw remote-peer 0 tcp 172.17.11.10

dlsw bridge-group 12

!

interface Loopback0

ip address 172.17.11.6 255.255.255.255

!

interface Serial0

ip address 172.26.244.6 255.255.255.0

clockrate 250000

!

interface Serial1

no ip address

shutdown

!

interface Serial2

no ip address

shutdown

!

interface Serial3

ip address 10.2.0.6 255.255.0.0

!

interface TokenRing0

ip address 10.1.0.6 255.255.0.0

ring-speed 16

!

interface TokenRing1

no ip address

shutdown

!

interface FastEthernet0

ip address 172.17.10.6 255.255.255.0

full-duplex

bridge-group 12

bridge-group 12 input-lsap-list 212

!

router eigrp 12

network 172.17.0.0

!

ip classless

no ip forward-protocol udp tftp

no ip forward-protocol udp domain

no ip forward-protocol udp time

no ip forward-protocol udp netbios-ns

no ip forward-protocol udp netbios-dgm

no ip forward-protocol udp tacacs

logging buffered informational

no logging console

logging trap debugging

logging source-interface Loopback0

logging history critical

logging 172.16.1.4

access-list 212 permit 0xF0F0 0x0101

tacacs-server host 172.16.1.2

tacacs-server key xxxxxx

snmp-server community xxxxxx RO

snmp-server community xxxxxx RW

snmp-server location Test Lab #2 Rexford

snmp-server host 172.16.1.3 public

bridge 12 protocol ieee

banner motd

****************** Warning! Warning! Warning! ************************

This system is restricted to Piedmont Natural Gas authorized users for

Business purposes. Unauthorized access is a violation of the law.

This service may be monitored for administrative and security reasons.

By proceeding, you consent to this monitoring.

****************** Warning! Warning! Warning! ************************

alias exec b sho ip int brie

!

line con 0

session-timeout 60

exec-timeout 30 0

password 7 xxxxxxxxxxxxxxxx

history size 100

line aux 0

password 7 xxxxxxxxxxxxxx

login authentication NO-TACACS

transport input all

line vty 0 4

session-timeout 60

exec-timeout 0 0

password 7 xxxxxxxxxxxxxxxx

logging synchronous

history size 100

transport preferred telnet

transport input telnet

!

ntp clock-period 17180307

ntp source Loopback0

ntp server 172.26.250.2

ntp server 172.26.250.1 prefer

end

!

! Last configuration change at 14:50:24 EST Tue Jan 14 2003 by templba

!

version 12.1

no service single-slot-reload-enable

service timestamps debug datetime msec localtime show-timezone

service timestamps log datetime msec localtime show-timezone

service password-encryption

!

hostname TST2RTR010

!

boot system flash c2600-js56i-mz.121-5.T9.bin

logging buffered 64000 debugging

logging rate-limit console 10 except errors

no logging console

aaa new-model

aaa authentication login default group tacacs+ line

aaa authentication login NO-TACACS line

aaa authentication login NO-CARE none

aaa authentication enable default group tacacs+ none

aaa authentication ppp default local group tacacs+

aaa authorization exec default group tacacs+ if-authenticated

aaa accounting exec default start-stop group tacacs+

aaa accounting commands 15 default start-stop group tacacs+

aaa accounting network default start-stop group tacacs+

aaa accounting connection default start-stop group tacacs+

aaa accounting system default start-stop group tacacs+

enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

enable password 7 xxxxxxxxxxxxxxxxxx

!

username test password 7 xxxxxxxxxxxxxx

username TST3RTR001 password 7 xxxxxxxxxxxxxxx

clock timezone EST -5

clock summer-time EDT recurring

ip subnet-zero

no ip source-route

!

!

no ip finger

ip telnet source-interface Loopback0

ip tftp source-interface Loopback0

no ip domain-lookup

ip domain-name piedmontng.com

ip name-server 172.16.1.3

ip dhcp excluded-address 192.168.246.1 192.168.246.24

!

ip dhcp pool TSTLAB

network 192.168.246.0 255.255.255.0

default-router 192.168.246.13

dns-server 172.17.65.20

domain-name piedmontng.com

netbios-name-server 172.17.65.20 172.17.65.30

!

no ip bootp server

ip multicast-routing

isdn switch-type basic-ni

call rsvp-sync

cns event-service server

!

!

!

!

!

!

dlsw local-peer peer-id 172.17.11.10 promiscuous

dlsw bridge-group 12

!

!

interface Loopback0

ip address 172.17.11.10 255.255.255.255

!

interface FastEthernet0/0

ip address 192.168.246.10 255.255.255.0

ip pim sparse-dense-mode

duplex auto

speed auto

bridge-group 12

bridge-group 12 input-lsap-list 212

!

interface BRI0/0

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-ni

isdn spid1 xxxxxxxxxxxxxxxxxxxxxxx

isdn spid2 xxxxxxxxxxxxxxxxxxxxxxx

ppp multilink

!

interface Serial0/0

no ip address

encapsulation frame-relay

!

interface Serial0/0.100 point-to-point

frame-relay class 128k-cir

frame-relay interface-dlci 100

!

interface Serial0/0.204 point-to-point

ip address 192.168.224.10 255.255.255.0

ip ospf network point-to-multipoint

frame-relay interface-dlci 204

!

interface FastEthernet0/1

ip address 172.17.10.10 255.255.255.0

ip pim sparse-dense-mode

duplex auto

speed auto

!

interface Dialer1

description Test Dial Backup from CHO

ip address 192.168.250.10 255.255.255.0

encapsulation ppp

no ip route-cache

no ip mroute-cache

dialer pool 1

dialer remote-name TST3RTR001

no cdp enable

ppp authentication chap

ppp multilink

!

router eigrp 12

network 172.17.0.0

network 192.168.224.0

network 192.168.246.0

network 192.168.250.0

no auto-summary

eigrp log-neighbor-changes

!

router ospf 13

log-adjacency-changes

network 192.168.224.0 0.0.0.255 area 0

!

ip kerberos source-interface any

ip classless

no ip forward-protocol udp tftp

no ip forward-protocol udp domain

no ip forward-protocol udp time

no ip forward-protocol udp netbios-ns

no ip forward-protocol udp netbios-dgm

no ip forward-protocol udp tacacs

ip tacacs source-interface Loopback0

no ip http server

ip pim send-rp-announce Loopback0 scope 6

ip pim send-rp-discovery scope 6

!

!

map-class frame-relay 128k-cir

no frame-relay adaptive-shaping

!

map-class dialer cbdialer

dialer callback-server username

!

map-class dialer cb

dialer callback-server username

logging history critical

logging trap debugging

logging source-interface Loopback0

logging 172.16.1.4

access-list 1 remark For Dialer-List 1

access-list 1 permit any

access-list 102 permit tcp any host 172.17.10.10 eq telnet

access-list 102 dynamic testlist timeout 5 permit ip any any

access-list 212 permit 0xF0F0 0x0101

dialer-list 1 protocol ip list 1

!

snmp-server community xxxxxx RO

snmp-server community xxxxxx RW

snmp-server location Test Lab #2 Rexford Road

snmp-server host 172.16.1.3 xxxxxxxxx

tacacs-server host 172.16.1.2

tacacs-server key xxxxxxxxx

bridge 12 protocol ieee

!

dial-peer cor custom

!

!

!

banner motd

****************** Warning! Warning! Warning! ************************

This system is restricted to Piedmont Natural Gas authorized users for

Business purposes. Unauthorized access is a violation of the law.

This service may be monitored for administrative and security reasons.

By proceeding, you consent to this monitoring.

TST2RTR101******** Warning! Warning! Warning! ************************

alias exec b show ip interface brief

!

line con 0

session-timeout 60

exec-timeout 30 0

password 7 xxxxxxxxxxxxxxxx

history size 100

transport input pad v120 telnet rlogin udptn

line aux 0

password 7 xxxxxxxxxxxxxxx

modem InOut

transport input all

speed 115200

line vty 0 4

session-timeout 60

exec-timeout 0 0

password 7 xxxxxxxxxxxxxxxxx

logging synchronous

history size 100

transport preferred telnet

transport input telnet

!

ntp clock-period 17208753

ntp source Loopback0

ntp server 172.17.11.4 prefer

end

If you see your DLSW peers, it is a pretty safe bet that DLSW is functioning properly. You might want to check on the following commands... I am not a NetBios expert, but it looks like they might be affecting what the router will forward.

no ip forward-protocol udp netbios-ns

no ip forward-protocol udp netbios-dgm

HTH

I have thought about those but I am only runing Netbeui and those commands appear to apply to Netbios over IP.

Thanks.

To troubleshoot your problem I recommend this page:

http://www.cisco.com/en/US/tech/tk331/tk336/technologies_tech_note09186a008009424a.shtml

Anyway, if you think there's no problem with routers, have you tried reconfiguring your PC's ?

Netbeui = Netbios Enhanced User Interface

"Data-link switching (DLSw) provides a means of transporting IBM Systems Network Architecture (SNA) and network basic input/output system (NetBIOS traffic over an IP network. It serves as an alternative to source-route bridging (SRB), a protocol for transporting SNA and NetBIOS traffic in Token Ring environments that was widely deployed prior to the introduction of DLSw. In general, DLSw addresses some of the shortcomings of SRB for certain communication requirements---particularly in WAN implementations. "

If this is a lab environment, I would suggest taking most everything out of the config except the bare minimum. Get the config to work and then start adding back in the pieces that are required for the production environment.

The config looks good and here is a link to help you confirm it...

You may consider an explicit peer statement rather than promiscious configuration. Unless you plan on building a whole lot of these type of connections to one hub peer.

http://www.cisco.com/en/US/partner/tech/tk331/tk336/technologies_configuration_example09186a0080093ece.shtml

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