Strannge situation with two SRW224G4 and one Cisco 2950-12
- From: duda6753@xxxxxxxxx
- Date: Sun, 16 Mar 2008 02:58:53 -0700 (PDT)
There is such scheme:
FreeBSD --> SRW224G4 --> SRW224G4 --> Cisco 2950-12 --> end user
equipment at Fa0/2 of the 2950.
I have BSD router with configured vlan40 interface:
bash-3.00# ifconfig vlan40
vlan40: flags=8843 mtu 1500
inet 10.25.0.1 netmask 0xffffffc0 broadcast 10.25.0.63
ether 00:07:e9:0a:6e:83
media: Ethernet autoselect (1000baseTX )
status: active
vlan: 40 parent interface: em1
bash-3.00#
The em1 card of the BSD is connected into trunk port g3 of the first
LinkSys SRW224G4 switch as described at scheme. And then this trunk
forwarding via another trunk port to second SRW224G4 and then to Cisco
2950 switch ( Fa0/1 is a trunk port also).
vlan40 is described in VLAN DB of all three switches.
The problem looks strange. I can't see MAC ( can't ping) of the user
equipment at Fa0/2 of the 2950 switch. But I can see equipment when I
connect it directly to trunk port of the second LinkSys switch without
using of Cisco switch.
So I suspect that problem is in Cisco switch configuration or IOS.
Here are examples of my configs from all three switches:
krrt-24# sh vlan
Vlan Name Ports Type Authorization
---- ----------------- --------------------------- ------------
-------------
1 1 e(1,4,11,13,15-19,21-22), other Required
g(1-3),ch(1-8)
40 A-Net e4,g(2-3) permanent Required
linksys-srw224g4@cntei# sh int switchport eth e3
Port : e3
Port Mode: Trunk
Gvrp Status: disabled
Ingress Filtering: true
Acceptable Frame Type: admitAll
Ingress UnTagged VLAN ( NATIVE ): 1
Protected: Disabled
Port is member in:
Vlan Name Egress rule Port Membership Type
---- -------------------------------- ----------- --------------------
1 1 Untagged System
40 A-Net Tagged Static
Forbidden VLANS:
Vlan Name
---- --------------------------------
Classification rules:
linksys-srw224g4@cntei#
And this is Catalyst config:
2950#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(20)EA1, RELEASE
SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Wed 04-Feb-04 21:21 by yenanh
Image text-base: 0x80010000, data-base: 0x805A8000
ROM: Bootstrap program is C2950 boot loader
2950 uptime is 1 day, 21 hours, 32 minutes
System returned to ROM by power-on
System image file is "flash:/c2950-i6q4l2-mz.121-20.EA1.bin"
cisco WS-C2950-12 (RC32300) processor (revision F0) with 20713K bytes
of memory.
Processor board ID FHK0635W0PR
Last reset from system-reset
Running Standard Image
12 FastEthernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0A:B7:E3:C4:00
Motherboard assembly number: 73-5782-11
Power supply part number: 34-0965-01
Motherboard serial number: FOC063507U0
Power supply serial number: DAB06336Z6E
Model revision number: F0
Motherboard revision number: A0
Model number: WS-C2950-12
System serial number: FHK0635W0PR
Configuration register is 0xF
2950#
interface FastEthernet0/1
description "P-t-P link with LinkSys SRW224g4@cntei"
switchport trunk allowed vlan 1,40
switchport mode trunk
!
interface FastEthernet0/2
description "A-Net users"
switchport access vlan 40
switchport mode access
!
So what you can advice me to do in this situation?
.
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