Hi, I got a Cisco 881w router and I'm having difficulties setting up the router. I've plugged in the LAN cable from my modem to the WAN port of the router but I can't get any internet access from my pc, I got the IP showing on the dialer but the FE4 port is not showing the IP address.
here is a sample configuration for the 881w. Make sure yours looks similar...
version 15.1 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname ISP ! boot-start-marker boot-end-marker ! no aaa new-model memory-size iomem 10 crypto pki token default removal timeout 0 ! ip source-route ! ip dhcp pool LAN network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 dns-server 184.108.40.206 220.127.116.11 ! ip cef no ipv6 cef ! license udi pid CISCO881W-GN-E-K9 sn FCZ1651C2KV ! crypto ipsec client ezvpn connect auto group key ! interface FastEthernet0 no ip address ! interface FastEthernet1 no ip address ! interface FastEthernet2 no ip address ! interface FastEthernet3 no ip address ! interface FastEthernet4 description WAN interface bandwidth inherit no ip address no ip redirects no ip unreachables no ip proxy-arp ip flow ingress duplex auto speed auto pppoe-client dial-pool-number 1 hold-queue 224 in ! interface Virtual-Template1 type tunnel no ip address tunnel mode ipsec ipv4 ! interface wlan-ap0 description Service module interface to manage the embedded AP no ip address arp timeout 0 ! interface Wlan-GigabitEthernet0 description Internal switch interface connecting to the embedded AP no ip address ! interface Vlan1 ip address 192.168.1.1 255.255.255.0 ip nat inside ! interface Dialer0 ip address negotiated no ip redirects no ip unreachables ip directed-broadcast no ip proxy-arp ip nat outside ip virtual-reassembly in ip verify unicast reverse-path encapsulation ppp ip tcp adjust-mss 1400 load-interval 30 dialer pool 1 dialer-group 1 ppp authentication chap callin ppp chap hostname ppp chap password ! ip forward-protocol nd no ip http server no ip http secure-server ! ip nat inside source list 10 interface Dialer0 overload ip route 0.0.0.0 0.0.0.0 Dialer0 ! access-list 10 permit 192.168.1.0 0.0.0.255 ! line con 0 password login line aux 0 line 2 no activation-character no exec transport preferred none transport input all line vty 0 4 password login transport input all ! end
I got the FE4 port connecting to the dialer already and the test results are coming good, but I don't know how to configure the NAT so that I can access the internet from the WLAN and the other four LAN port. I'm using Cisco Configuration Professional instead of using the IOS command.
Cisco Configuration Professional detects the local networks directly connected to your router and enables NAT for those networks, In your case, the detected range is 192.168.1.0/24. Check the box next to that range and you should be fine.
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