Hi Experts
have got a Virtual Lab connected to four physical switches via a Breakout
Switch. The problem is that I cant ping across the Virtual Lab to the
physical switches. I can see the Routers from the Switches via CDP but I
can't see the Switches on the Virtual Routers in GNS3. It was working and
then stopped working and have never been able to figure out why its not
working.
Config on the breakout Switch
interface FastEthernet1/0/1
description UP TO UBUNTU HOST
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 102-120
switchport mode trunk
*l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp*
no cdp enable
spanning-tree portfast
no shut
config on the tunnel Interfaces
interface range fa1/0/2 ? 21
no cdp enable
spanning-tree portfast
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
switchport mode dot1q-tunnel
no shut
regards
If I run a tcpdump on the Servers connecting to the Physical switches Im
able to see information coming from the Virtual lab Routers but I cant seem
to get the same information from the physical switches back to the virtual
lab
Below is the `TCPDUMP results fro some of the routers
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 123
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
09:21:14.618359 CDPv2, ttl: 180s, checksum: 692 (unverified), length 327
Device-ID (0x01), length: 2 bytes: 'R3'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 0.0.0.0
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
VTP Management Domain (0x09), length: 0 byte: ''
09:22:14.622721 CDPv2, ttl: 180s, checksum: 692 (unverified), length 327
Device-ID (0x01), length: 2 bytes: 'R3'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 0.0.0.0
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch,
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 121
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
09:26:09.977414 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R1'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.10.10.1
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:27:09.982190 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R1'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.10.10.1
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:28:09.996767 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R1'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.10.10.1
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
^C
3 packets captured
3 packets received by filter
0 packets dropped by kernel
root_at_rdpserver:~#
root_at_rdpserver:~#
root_at_rdpserver:~#
root_at_rdpserver:~#
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 121
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 222
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
09:30:12.273612 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:31:12.273833 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:32:12.288385 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:33:12.302879 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:34:12.324436 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
09:34:39.757590 c2:08:08:87:00:00 (oui Unknown) > ab:00:00:02:00:00 (oui
Unknown), ethertype 802.1Q (0x8100), length 81:
0x0000: 3d00 0700 0000 0100 0303 0000 0200 0221 =..............!
0x0010: 0003 0006 0000 0000 0000 0400 023c 0005 .............<..
0x0020: 0002 d805 0600 0200 0107 0006 c208 0887 ................
0x0030: 0000 6400 0179 9001 0101 9101 02ee 05 ..d..y.........
09:35:12.346970 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R2'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.1.100.2
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.1.100.0/24
VTP Management Domain (0x09), length: 0 byte: ''
0 packets dropped by kernel
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 224
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
09:49:03.369383 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R4'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.0.0.4
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.0.0.0/8
VTP Management Domain (0x09), length: 0 byte: ''
09:49:40.952482 c2:06:08:87:00:00 (oui Unknown) > ab:00:00:02:00:00 (oui
Unknown), ethertype 802.1Q (0x8100), length 81:
0x0000: 3d00 0700 0000 0100 0303 0000 0200 0221 =..............!
0x0010: 0003 0006 0000 0000 0000 0400 023c 0005 .............<..
0x0020: 0002 d805 0600 0200 0107 0006 c206 0887 ................
0x0030: 0000 6400 0179 9001 0101 9101 02ee 05 ..d..y.........
09:50:03.385696 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R4'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.0.0.4
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.0.0.0/8
VTP Management Domain (0x09), length: 0 byte: ''
09:51:03.411774 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R4'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.0.0.4
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.0.0.0/8
VTP Management Domain (0x09), length: 0 byte: ''
09:52:03.437268 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R4'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.0.0.4
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.0.0.0/8
VTP Management Domain (0x09), length: 0 byte: ''
09:53:03.442412 CDPv2, ttl: 180s, checksum: 692 (unverified), length 336
Device-ID (0x01), length: 2 bytes: 'R4'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 10.0.0.4
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
Prefixes (0x07), length: 5 bytes: IPv4 Prefixes (1): 10.0.0.0/8
VTP Management Domain (0x09), length: 0 byte: ''
^C
6 packets captured
6 packets received by filter
0 packets dropped by kernel
root_at_rdpserver:~# tcpdump -vvv -i eth0 vlan 226
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
09:54:08.093644 CDPv2, ttl: 180s, checksum: 692 (unverified), length 327
Device-ID (0x01), length: 2 bytes: 'R6'
Version String (0x05), length: 246 bytes:
Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 14:48 by prod_rel_team
Platform (0x06), length: 10 bytes: 'Cisco 3725'
Address (0x02), length: 13 bytes: IPv4 (1) 0.0.0.0
Port-ID (0x03), length: 15 bytes: 'FastEthernet0/0'
Capability (0x04), length: 4 bytes: (0x00000029): Router, L2 Switch, IGMP
snooping
VTP Management Domain (0x09), length: 0 byte:
And a debug on the Virtual routers show that traffic is the routers toward
the trunk to the Virtual Switches
Below is the diagram of the setup
Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 24 2012 - 12:55:31 ART
This archive was generated by hypermail 2.2.0 : Tue May 01 2012 - 08:20:46 ART