FiruIT
asked on
Cisco Switch Only allowing One trunk native vlan
As per guidance from Network admin at head office ,
At my site office on a Cisco Switch ( which is connected to head office Core switch ),
i configured a port to be Native vlan trunk port, to connect and use a "Cisco Access Point" on that port.
Everything was fine, until i configured another port on same switch, to be " Native vlan trunk port " to use another access point.
Well, when i done the same , old port came in to default vlan (vlan1)...!!
and the port on which i did the configuration , came in to native vlan, and now Access point is not working in old port but is working in the last port i have configured
Dear all IT Geek....What does that mean...?
Does it mean that in Switch only one" native vlan trunk port" will be allowed....?
or if no....is there any mistake i have done...? like below is the steps i followed
Cisco SW(config)#default interface f0/22
Interface FastEthernet0/22 set to default configuration
Cisco SW(config-if)# switchport mode trunk
Cisco SW(config-if)# switchport trunk native vlan 505
Cisco SW(config-if)# shutdown
Cisco SW(config-if)# no shut down
also please indicate, if i have to ask or inform Network admin at head office to do something from their end, to make work my switches with multiple ports in " native vlan trunk port " mode , so that i can use multiple access point on same switch.
At my site office on a Cisco Switch ( which is connected to head office Core switch ),
i configured a port to be Native vlan trunk port, to connect and use a "Cisco Access Point" on that port.
Everything was fine, until i configured another port on same switch, to be " Native vlan trunk port " to use another access point.
Well, when i done the same , old port came in to default vlan (vlan1)...!!
and the port on which i did the configuration , came in to native vlan, and now Access point is not working in old port but is working in the last port i have configured
Dear all IT Geek....What does that mean...?
Does it mean that in Switch only one" native vlan trunk port" will be allowed....?
or if no....is there any mistake i have done...? like below is the steps i followed
Cisco SW(config)#default interface f0/22
Interface FastEthernet0/22 set to default configuration
Cisco SW(config-if)# switchport mode trunk
Cisco SW(config-if)# switchport trunk native vlan 505
Cisco SW(config-if)# shutdown
Cisco SW(config-if)# no shut down
also please indicate, if i have to ask or inform Network admin at head office to do something from their end, to make work my switches with multiple ports in " native vlan trunk port " mode , so that i can use multiple access point on same switch.
mikebernhardt
Please post the output of "show version" and also the current running configuration of both ports- "show runn interface f0/22" and "show runn interface f0/[the other port]"
Hi Firuit,
you need to get the difference between native vlan and default vlan, as they are different concepts.
you may want to read the following:
https://supportforums.cisco.com/discussion/11700441/what-difference-between-default-vlan-and-native-vlan
basically, the native vlan will go untagged on trunk, which is what you need for the access point to work.
hope this helps
max
you need to get the difference between native vlan and default vlan, as they are different concepts.
you may want to read the following:
https://supportforums.cisco.com/discussion/11700441/what-difference-between-default-vlan-and-native-vlan
basically, the native vlan will go untagged on trunk, which is what you need for the access point to work.
hope this helps
max
ASKER
thanks Max that was good guidance ,
Dear all,
Please testify if my below conclusion is correct or wrong ,
(if its wrong please provide me hint , i will google and will find where i went wrong)
" IF we configured "native vlan trunk mode" on a Cisco Switch Port for a Wireless AP to function and latter if we disconnect AP from that Port .... , then that port will start appearing under Vlan 1 when we run
"Show Vlan Br" and so will not appear in Native vlan , that we see when we run "show int trunk"
Dear all,
Please testify if my below conclusion is correct or wrong ,
(if its wrong please provide me hint , i will google and will find where i went wrong)
" IF we configured "native vlan trunk mode" on a Cisco Switch Port for a Wireless AP to function and latter if we disconnect AP from that Port .... , then that port will start appearing under Vlan 1 when we run
"Show Vlan Br" and so will not appear in Native vlan , that we see when we run "show int trunk"
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Dear max_the_king
your guidance was very nice and helpful , thanks a lot.
Dear mikebernhardt ,
thanks very much for answering specifically to my doubt it helped me a alot.
your guidance was very nice and helpful , thanks a lot.
Dear mikebernhardt ,
thanks very much for answering specifically to my doubt it helped me a alot.