Cisco 857 VLAN configuration

Unanswered Question
Feb 2nd, 2009


I want to configure 2 VLANs on Cisco 857 router.

Router#vlan database

Router(vlan)#vlan ?

<1-1005> ISL VLAN index

Router(vlan)#vlan 2

Vlan can not be added. Maximum number of 1 vlan(s) in the database.

According to :

Q. What is the maximum number of VLANs supported on WLAN for the Cisco 870 and Cisco 850 Series?

A. The maximum number of supported VLANs is 10. Each router will support up to four encrypted VLANs.

SO... Is it possible to add VLANs on Cisco 857 router?

Thanks in advance.

I have this problem too.
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Giuseppe Larosa Mon, 02/02/2009 - 23:33

Hello Yevgeniya,

depending on the IOS version you should be able to use up to two vlans as reported on other threads.

check the current number of vlans with

show vlans or sh vlan

this is related to IOS version anyway

another thought:

see if you can create a vlan inside global config:

config t

vlan 2

you may be trying to use the older way to create vlans.


Hope to help



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