05-18-2011 11:42 AM - edited 03-06-2019 05:07 PM
I need to create a vlan from a port on a 3550 (vlan100) to fa0/0/1 port on a ESW on a 2811. What is the best way of going about this. The interface fa0/0/1 on the 2811 never wants to come up.
05-18-2011 11:51 AM
David
You need to do the following -
1) make sure vlan 100 is created in the vlan database on the 2811
2) allocate the ports at both ends into vlan 100 ie.
int x/x
switchport mode access
switchport access vlan 100
3) use a crossover cable to connect the 2 devices
Jon
05-19-2011 06:32 AM
What is odd is that on the fa0/0/1 interface of the 2811 the switchport mode access does not show up in the running config but the command is accepted in interface-config mode. The command switchport access vlan100 does show up however
05-19-2011 06:36 AM
Hi,
This is probably the default setting and Cisco never shows the default setting in a show run.
If this this the case a show run all should mention the command. [edit]: oups this is an ASA command [/edit]
Regards.
Alain.
05-19-2011 06:45 AM
thanks. Here is a nutshell is what I and my provider are trying to do. One my 3350 I have created a vlan100 with an ip of 192.168.1.2 /30. One the 2811 he has a vlan 100 of 192.168.1.1/30. One the gig 0/4 port of the 3550 I have switchport mode access, switchport access vlan100. The interface is up/up in the sh run.
One the 2811 he has done the same on the fa0/0/1 interface of the ESW module. However his interface shows up/down.
We need for thes two devices to ping each other on the 192.168.1.0/30 subnet
What are we missing??
Thanks
05-19-2011 07:31 AM
Hi,
Can you post output of sh int f0/0/1 switchport as well as sh ip int br | in Vlan on the router
Regards.
Alain.
05-19-2011 09:03 AM
#sho int f0/0/1 switchport
Name: Fa0/0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Disabled Access Mode VLAN: 100 ((Inactive)) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Trunking VLANs Active: none Priority for untagged frames: 0 Override vlan tag priority: FALSE Voice VLAN: none Appliance trust: none
05-19-2011 10:03 AM
Can you do a sh vlan-sw br
If vlan 100 is not present then try to configure:
config t
vlan 100
or if it doesn't accept this syntax then try
vlan database
vlan 100
exit
Then verify again with sh vlan-sw br
Regards.
Alain.
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