IRB - Transparent bridging problem! - Part II

From: Nicolai Gersbo Solling (nicolai@xxxxxxxxx)
Date: Mon Apr 08 2002 - 07:54:00 GMT-3


   
I got it working now - The configs are below...

Just oine problem (I don't know if this is related to my Fastethernet on
R5), but...the interface resets as soon as I do changes on it, and after
that only a reload of R5 and R6 will make it work again!
Any ideas why this is happening?

Also...If I wan't to run IPX normally routed on the 2 Vlan's I reckon I just
have to give the network statement on the subinterfaces on R6!

Anyway...thanks for valuable input!

Nic

R5#sh run
Building configuration...

Current configuration : 1636 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R5
!
boot system flash:c7200-js-mz.121-9a.bin
!
!
!
!
!
ip subnet-zero
no ip domain-lookup
!
ipx routing 0005.0005.0005
!
!
!
!
!
interface Loopback0
 ip address 192.22.5.5 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
 half-duplex
!
interface FastEthernet1/0
 ip address 192.22.17.5 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet1/1
 ip address 192.22.12.5 255.255.255.0
 no ip redirects
 speed 100
 full-duplex
 ipx network 10
 standby ip 192.22.12.2
 standby priority 125
 standby preempt
!
interface Ethernet2/0
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/1
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/2
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/3
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/4
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/5
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/6
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Ethernet2/7
 no ip address
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface Serial3/0
 no ip address
 no ip route-cache
 no ip mroute-cache
 framing g751
 dsu bandwidth 34010
 serial restart-delay 0
!
ip classless
no ip http server
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
 login
!
end

R6:

R6#sh run
Building configuration...

Current configuration : 1934 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R6
!
!
!
!
resource-pool disable
!
!
!
!
!
ip subnet-zero
no ip domain-lookup
!
ipx routing 0006.0006.0006
mta receive maximum-recipients 0
!
controller T1 0
 framing esf
 clock source line primary
 linecode b8zs
 channel-group 1 timeslots 1 speed 64
!
controller T1 1
 clock source line secondary 1
!
controller T1 2
!
controller T1 3
!
!
!
bridge irb
!
!
interface Loopback0
 ip address 137.22.6.6 255.255.255.0
 ip ospf network point-to-point
!
interface Ethernet0
 no ip address
 shutdown
!
interface Serial0:1
 ip address 137.22.11.6 255.255.255.240
 encapsulation frame-relay
 ip ospf priority 0
 frame-relay map ip 137.22.11.3 64
 frame-relay map ip 137.22.11.4 64
 no frame-relay inverse-arp
 frame-relay lmi-type ansi
!
interface FastEthernet0
 no ip address
 duplex auto
 speed auto
!
interface FastEthernet0.1
 encapsulation isl 1
 ip address 1.1.1.2 255.255.255.0
 no ip redirects
!
interface FastEthernet0.10
 encapsulation isl 10
 no ip redirects
 ipx encapsulation NOVELL-ETHER
 ipx network 10
 bridge-group 1
!
interface FastEthernet0.20
 encapsulation isl 20
 ip address 137.22.14.1 255.255.255.252
 no ip redirects
!
interface FastEthernet0.30
 encapsulation isl 30
 ip address 137.22.16.6 255.255.255.128
 no ip redirects
!
interface FastEthernet0.40
 encapsulation isl 40
 no ip redirects
 ipx encapsulation NOVELL-ETHER
 ipx network 40
 bridge-group 1
!
interface BVI1
 ip address 137.22.12.6 255.255.255.0
 no ip redirects
 standby ip 137.22.12.2
 standby priority 126
 standby preempt
!
router ospf 1
 router-id 137.22.6.6
 log-adjacency-changes
 network 137.22.6.6 0.0.0.0 area 1
 network 137.22.11.6 0.0.0.0 area 1
 network 137.22.14.1 0.0.0.0 area 33
!
ip classless
no ip http server
!
!
!
!
!
!
bridge 1 protocol ieee
 bridge 1 route ip
!
line con 0
line aux 0
line vty 0 4
 login
!
end

-----Original Message-----
From: Engelhard M. Labiro [mailto:engelhard@netmarks.co.jp]
Sent: 8. april 2002 11:40
To: Nicolai Gersbo Solling; CCIE
Subject: Re: IRB - Transparent bridging problem!

I tried your scenario last time, with a router in a stick to bridge
between VLANs. I got a working config to bridge between
the two VLAN, at the time either "bridge 1 protocol ieee" or
"bridge 1 protocol vlan-bridge" doesn`t have any different result.
Both commands still bridge the two VLANs.
I didn`t investigate any further what are differences if any with
a "vlan-bridge" command. Hope that someone would tell us
what this command for.

Engelhard M. Labiro$B!!(B(engelhard@netmarks.co.jp)
Security Group, Technical Solution Center, Netmarks Inc.
2-13-34 Konan, Minato-Ku, Tokyo 108-0075
Tel: +81-3-5461-2575, Fax: +81-3-5461-2093

----- Original Message -----
From: "Nicolai Gersbo Solling" <nicolai@cisco.com>
To: "CCIE" <ccielab@groupstudy.com>
Sent: Monday, April 08, 2002 1:35 AM
Subject: IRB - Transparent bridging problem!

> I have the following Scenario:
>
> R5---Vlan 10---Switch---Vlan40---R6
>
> I wan't to bridge IP between R5 and R6...
>
> ...but I am a bit in doubt of which bridge protocol to use:
>
> R5 is a standard configuration and the switch has it's sc0 in Vlan 40.
>
> I have configured R6 (The router that actually takes care of the bridging)
> with the following:
>
> bridge 1 protocol vlan-bridge
> bridge 1 route ip
> bridge 1 route ipx
> !
> interface FastEthernet0.10
> encapsulation isl 10
> no ip redirects
> bridge-group 1
> !
> interface FastEthernet0.40
> encapsulation isl 40
> no ip redirects
> bridge-group 1
> !
> interface BVI1
> ip address 137.22.12.6 255.255.255.0
> no ip redirects
> standby ip 137.22.12.2
> standby priority 126
> standby preempt
>
> I got the config working now, but I had some strange problems getting it
to
> work...
> I got Encapsulation failed on R5 when I tried to ping R6 - Both the
> Mac-table of the switch and the Arp-cache of R6 looked good, but I could
> just not resolve on R5...
> Then I tried reloading R6 - This did not help...Somehow something was
wrong
> in the switch - After giveing that a good old powercycle - It works like a
> charm...
>
> Any good, and bright ideas why I encountered this...
> And is it Vlan Bridging I need to use?
>
> Nic



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:59 GMT-3