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Configuring Guest Access

I'm needing help configuring a wireless guest network. I've never setup a vlan and need some guidance. We have HP 420 wireless access points (with the default ssid using 802.1x), HP 5400 switches (running at layer 2); and Cisco 2800 series routers. Right now everyone is on default vlan 1. I want to make the guest vlan 5.  
The router seems to be the big question for me. How do I configure the router for the new vlan and how do I word the ACL to limit the guest users?
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gaskew
Asked:
gaskew
1 Solution
 
lrmooreCommented:
Can't help with the HP switch, but make sure you set the port that the router connects into as a trunk port and include vlan 1 and vlan 5.

On the router, setup a vlan subinterface:

interface Fastethernet 0/0.5
 encap dot1q 5
 ip address 10.20.30.1 255.255.255.0
 ip nat inside
 access-group 101 in

Add whatever IP subnet you are assigning to the guest wireless vlan to the nat acl:

access-list 1 permit 10.20.30.0 0.0.0.255  <= guest vlan
access-list 1 permit 10.10.10.0 0.0.0.255  <= internal LAN
ip nat inside source list 1 interface serial0/0/0 overload  <== whatever you have already

To restrict access between the networks, define acl 101 that gets applied to the interface:
 access-list 101 deny ip 10.20.30.0 0.0.0.255 10.10.10.0 0.0.0.255
 access-list 101 permit ip any any

Done

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