11-22-2002 08:54 AM - edited 03-02-2019 03:07 AM
I have setup a 3550 int gig0/1 as a trunk link , no negotiate, permitting ALL vlan's. I have the native VLAN as vlan1 on both ends of the fiber trunk link. The other end of the link is a 4006 GIG card which also has vlan 1 as it's native vlan, also set to no negotiate for the trunk. I have set the appropriate switchport access on the 3550 and added the ip helper-address to point to the dhcp server that holds it's coorisponding ip pool and that works fine. For some reason I can't ping or telnet to the mngt. IP I put on VLAN1. Does anyone know what's going on here. I'll continue to troubleshoot.
Thanks,
Alonzo
11-22-2002 09:26 AM
Can you try trunking mode "on" and see if it makes any difference? Also can you paste the relevant config from both the 3550 and 4006? The following page should be helpful as well
11-22-2002 10:39 AM
Did you put vlan 1 config under the ethernet interface on the router so router can do the routing between vlans?
12-19-2002 11:07 AM
4006 trunk config................
CORE-A> (enable) show trunk 6/1
* - indicates vtp domain mismatch
Port Mode Encapsulation Status Native vlan
-------- ----------- ------------- ------------ -----------
6/1 nonegotiate dot1q trunking 1
Port Vlans allowed on trunk
-------- ---------------------------------------------------------------------
6/1 1-1005
Port Vlans allowed and active in management domain
-------- ---------------------------------------------------------------------
6/1 1,48-55,80,220
Port Vlans in spanning tree forwarding state and not pruned
-------- ---------------------------------------------------------------------
6/1 1,48-55,80,220
CORE-A> (enable)
vtp info for 4006.............
CORE-A> (enable) show vtp domain
Domain Name Domain Index VTP Version Local Mode Password
-------------------------------- ------------ ----------- ----------- ----------
TEXAS 1 2 server configured
Vlan-count Max-vlan-storage Config Revision Notifications
---------- ---------------- --------------- -------------
15 1023 18 disabled
Last Updater V2 Mode Pruning PruneEligible on Vlans
--------------- -------- -------- -------------------------
disabled disabled 2-1000
Here is the 3550 info:
CCW-IDF2-CSW1#show int trunk
Port Mode Encapsulation Status Native vlan
Gi0/1 on 802.1q trunking 1
Port Vlans allowed on trunk
Gi0/1 1-4094
Port Vlans allowed and active in management domain
Gi0/1 1,48-55,80,220
Port Vlans in spanning tree forwarding state and not pruned
Gi0/1 1,48-55,80,220
CCW-IDF2-CSW1#
vtp info for 3550.............
CCW-IDF2-CSW1#show vtp stat
VTP Version : 2
Configuration Revision : 18
Maximum VLANs supported locally : 1005
Number of existing VLANs : 15
VTP Operating Mode : Client
VTP Domain Name : TEXAS
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0xDC 0x79 0x50 0x70 0x15 0xFB 0xD3 0xF5
You know by looking @ this output myself I can see the the prune eligible vlans are only 2-1000 Why is the 4006 showing this?? I think this is the problem???
01-05-2003 09:57 PM
Looks like you might have a layer 3 problem here. did you configure a gateway on your management interface?
01-06-2003 07:55 PM
You'll never be able to prune VLAN 1. If you have layer 2 connectivity & you're trunking ok, then you might have the wrong (or no) gateway IP. Just my .02
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