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New Member

Trying to merge lan subnet with wifi subnet without killing internet access

I have a Cisco 871w which I am using as my router for internet access. It is connected to my cable modem. My outside local interface is Fast Ethernet 4. While my inside interfaces are Fast Ethernet 0 - 3. The subnet for that is 192.168.1.0 255.255.255.0. My wifi subnet is 192.168.2.0 255.255.255.0.

My goal is to have 1 subnet instead of 2. I am not sure how to approach this without bringing down my internet.

Any help would be appreciated!

Here is my config:

R1#show run
Building configuration...

Current configuration : 2768 bytes
!
! Last configuration change at 06:26:04 UTC Thu Jan 15 2015
! NVRAM config last updated at 06:13:25 UTC Thu Jan 15 2015
! NVRAM config last updated at 06:13:25 UTC Thu Jan 15 2015
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$WGaR$ENClKInCBHeG29OzoldeB1
!
no aaa new-model
!
crypto pki token default removal timeout 0
!
!
dot11 syslog
!
dot11 ssid nes
vlan 1
authentication open
authentication key-management wpa
mbssid guest-mode
wpa-psk ascii 0 XXXXXXXXXX
!
ip source-route
!
!
ip dhcp excluded-address 192.168.1.1 192.168.1.100
ip dhcp excluded-address 192.168.2.1 192.168.2.100
!
ip dhcp pool lan
network 192.168.1.0 255.255.255.0
dns-server 4.2.2.2 8.8.8.8
default-router 192.168.1.1
!
ip dhcp pool wifi
network 192.168.2.0 255.255.255.0
dns-server 4.2.2.2 8.8.8.8
default-router 192.168.2.1
!
!
!
ip cef
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
username admin secret 5 $1$H7H9$NOkVjNhVk34i.mcWLwWX01
!
!
!
!
!
!
bridge irb
!
!
!
interface FastEthernet0
switchport access vlan 2
no ip address
!
interface FastEthernet1
switchport access vlan 2
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface FastEthernet4
ip address dhcp
ip nat outside
ip virtual-reassembly in
speed 100
full-duplex
!
interface Dot11Radio0
no ip address
!
encryption vlan 1 mode ciphers aes-ccm tkip
!
ssid nes
!
mbssid
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 Dot11Radio0.1
encapsulation dot1Q 1 native
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
!
interface Vlan1
no ip address
ip virtual-reassembly in
bridge-group 1
!
interface Vlan2
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface BVI1
ip address 192.168.2.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list INSIDE_NAT_ADDRESSES interface FastEthernet4 overload
!
ip access-list standard INSIDE_NAT_ADDRESSES
permit 192.168.1.0 0.0.0.255
permit 192.168.2.0 0.0.0.255
!
!
!
!
!
!
control-plane
!
bridge 1 route ip
banner motd ^C
==================================
========= DO NOT LOG IN =========
==================================
^C
!
line con 0
exec-timeout 0 0
logging synchronous
no modem enable
line aux 0
line vty 0 4
password XXXXXXXX
login
transport input all
!
ntp server 198.27.65.66
end

 

  • WAN Routing and Switching
1 REPLY
New Member

If I have not misread, but

If I have not misread, but why dont you simply put the LAN ports on the same vlan 1?  If that is possible, then have the end devices that belong to VLAN 2 rebooted/DHCP renewed.

 

No/yes?!

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