06-09-2008 01:53 PM - edited 07-03-2021 04:00 PM
I am trying to set up a new WAP in a remote facility. This set-up is a mirror of the setup that we have in our corp office (with obvious differences that are site specific).
I am trying to configure this so that there are two VLANs. VLAN 10 is set specifically for data and all laptops are authenticating against a RADIUS server back at corp. VLAN 20 is set for Voice and is using pre-shared keys between the wireless phones we use and the AP.
interface FastEthernet0.10
encapsulation dot1Q 10 native
no ip route-cache
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface FastEthernet0.20
encapsulation dot1Q 20
no ip route-cache
bridge-group 2
no bridge-group 2 source-learning
bridge-group 2 spanning-disabled
interface BVI1
ip address 172.16.152.5 255.255.252.128
no ip route-cache
The port on the 3750 switch onsite is set as a trunk port:
interface FastEthernet1/0/45
switchport trunk encapsulation dot1q
switchport mode trunk
The problem that i'm having is that I can only get one VLAN to work at one time. The IP address/Subnet mask for the BVI interface correspond to the VLAN 10 subnetting scheme. I also played around with the trunk settings on the switch (by adding the voice vlan 20 command to push voice in that direction). But no matter what, if VLAN 10 is working (and laptops are authenticating against RADIUS) the phones will not work and vice versa.
Any help would be appreciated.
06-09-2008 10:29 PM
You do not need to configure a bridge group on the subinterface that you set up as the native VLAN. This bridge group is moved to the native subinterface automatically to maintain the link to BVI 1, which represents both the radio and Ethernet interfaces; bridge-group number should be the same as vlan number; 3750 need to use same native vlan as AP. so make following changes:
1. delete bridge-group 1 under int f0.10,
2. change bridge-group 2 under int f0.20 to bridge-group 20.
3. in 3750, under int f1/0/45, add: switchport trunk native vlan 10
06-09-2008 10:31 PM
You need to set the native vlan to match your management vlan (subnet 172.16.152.5). Also you have a pretty weird subnet mask configured 255.255.252.128?
This is a working config, for vlans 222 and 208:
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
hold-queue 160 in
!
interface FastEthernet0.222
encapsulation dot1Q 222
no ip route-cache
bridge-group 222
no bridge-group 222 source-learning
bridge-group 222 spanning-disabled
!
interface FastEthernet0.208
encapsulation dot1Q 208
no ip route-cache
bridge-group 208
no bridge-group 208 source-learning
bridge-group 208 spanning-disabled
Also it is better to restrict you trunk port like this:
switchport trunk encapsulation dot1q
switchport trunk native vlan 300
switchport trunk allowed vlan 222,208,300
switchport mode trunk
Assuming 300 is the Mgmt. VLAN and the others are for the Wireless USers.
Regards
Farrukh
06-10-2008 12:37 AM
Hi,
Could you provide the entire configuration. Check the below template.. It might help
dot11 ssid data
vlan 20
authentication open
guest-mode
mbssid guest-mode
!
dot11 ssid voice
vlan 10
authentication open
mbssid guest-mode
!
interface Dot11Radio0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
!
interface Dot11Radio0.10
encapsulation dot1Q 10
no ip route-cache
bridge-group 10
bridge-group 10 subscriber-loop-control
bridge-group 10 block-unknown-source
no bridge-group 10 source-learning
no bridge-group 10 unicast-flooding
bridge-group 10 spanning-disabled
!
interface Dot11Radio0.20
encapsulation dot1Q 20
no ip route-cache
bridge-group 20
bridge-group 20 subscriber-loop-control
bridge-group 20 block-unknown-source
no bridge-group 20 source-learning
no bridge-group 20 unicast-flooding
bridge-group 20 spanning-disabled
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption vlan 10 key 1 size 40bit 7 E7898F31C4BE transmit-key
encryption vlan 10 mode wep mandatory
!
encryption mode wep mandatory
!
encryption vlan 20 key 1 size 40bit 7 32B4B7CFE0F6 transmit-key
encryption vlan 20 mode wep mandatory
!
ssid data
!
ssid voice
!
mbssid
station-role root
!
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