topic Re: configuring wireless on cisco 877w router in Wireless

configuring wireless on cisco 877w router

vincent-n — Sun, 04 Jul 2021 19:07:45 GMT

Hi all

I have a Cisco 877W wireless/ADSL router and having great difficulty with configuring wireless on this router. Here is a quick summary.

1. The ADSL is configured to obtain public IP from the ISP

2. Default interface vlan 1 is configured with an IP address

3. I went into vlan database, tried to configure multi vlans and the router prompted me that it can only have max 2 vlans. Hence what's the use of up to 16 different SSID using wireless?

4. I've setup DHCP scope on the router to give out IP address to clients (both wireless and wired)

5. I'm able to configure WPA-PSK on the router and was able to connect wirelessly to the router but I won't be able to obtain an IP address from the router

6. There are two scenarios that I'd like to do:

A. Setup wireless to connect to the same subnet as what's on vlan1

B. Setup wireless to connect to a different subnet to vlan1

For the life of me, I could not find docs on Cisco web site that shows me how to exactly this. I found some documents that use interface F0 as a trunk port and treat the interface Dot11Radio0 with sub-interfaces. I don't connect this router to a switch (standalone router) so how can I do this? Please point me to some docs.

Thanks in advance for your help.

Re: configuring wireless on cisco 877w router

vincent-n — Fri, 19 May 2006 04:21:32 GMT

Oh, and here is a sample of my config

ip dhcp excluded-address 10.116.3.1 10.116.3.8

ip dhcp pool ABC

import all

network 10.116.3.0 255.255.255.224

dns-server 10.95.3.8 10.95.3.10

default-router 10.116.3.1

interface Dot11Radio0

no ip address

encryption mode ciphers tkip

ssid MM-Wireless

authentication open

authentication key-management wpa

wpa-psk ascii 0 abc123456

speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0

station-role root

interface Vlan1

ip address 10.116.3.1 255.255.255.224

Also, 'd liek to be able to broadcast out this SSID if possible. On my workstation, it keeps coming up as "SSID Not Broadcast". Thanks.

Re: configuring wireless on cisco 877w router

Stephen Rodriguez — Mon, 22 May 2006 19:23:59 GMT

Best bet here, is to configure a BVI interface on your router, and move the IP address from the vlan to the BVI, place the vlan in to bridge-group 1, and save and reload. having sub interfaces on your dot 0 radio works for having different SSID's, but you still need the BVI (bridged virtual interface) to Communicate on.

Re: configuring wireless on cisco 877w router

zhenningx — Tue, 23 May 2006 12:06:40 GMT

My configuration works for wireless no authentication, but failed for WPA-PSK:

ip dhcp excluded-address 172.16.250.1

ip dhcp pool TEST

import all

network 172.16.250.0 255.255.255.0

default-router 172.16.250.1

bridge irb

interface FastEthernet4

description $ES_WAN$

ip address dhcp client-id FastEthernet4

ip nat outside

ip virtual-reassembly

duplex auto

speed auto

interface Dot11Radio0

no ip address

ssid 111

vlan 1

authentication open

authentication key-management wpa

wpa-psk ascii 0 Cisco1234

speed basic-1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0 54.0

station-role root

interface Dot11Radio0.1

encapsulation dot1Q 1 native

no cdp enable

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 spanning-disabled

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

interface Vlan1

no ip address

bridge-group 1

bridge-group 1 spanning-disabled

interface BVI1

ip address 172.16.250.1 255.255.255.0

ip nat inside

ip virtual-reassembly

After I configured the same wpa-psk key on the XP computer using windows zero configuration and tried to connect to the wireless work, I got the following errors on the router:

*Mar 1 03:00:51.623: *** Not encrypted dot1x packet from 000c.f123.25cf has been discarded

*Mar 1 03:00:52.623: %DOT11-7-AUTH_FAILED: Station 000c.f123.25cf Authentication failed

What could be wrong? Thanks!