Cisco Router 881G IOS 15.4(1) using Static IP Address from ISP
DNS is not resolving names & client machines cannot pull HTML web pages or ping Bing.com.
But, I can ping Bing.com from the router using the DNS IP Address provided by ISP and configured on the router. I have attached the running-config file for your viewing pleasure.
So I need help with correcting the DNS issue
Router Configuration File Building configuration...
Current configuration : 4518 bytes !
! version 15.4 no service pad service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname WAN-Router ! boot-start-marker boot-end-marker ! ! logging buffered 51200 warnings enable secret 5 ( password removed from view ) enable password 7 ( password removed from view ) ! no aaa new-model memory-size iomem 10
! ( Key removed from view ) ! quit ! ! ip dhcp excluded-address 192.168.100.1 WAN-Router ip dhcp excluded-address 192.168.100.100 File Server ip dhcp excluded-address 192.168.100.252 Air=AG1242 ip dhcp excluded-address 192.168.100.253 CCNA Lab ip dhcp excluded-address 192.168.100.254 Cisco SG200-18 Core Switch ! ip dhcp pool local-LAN import all network 192.168.100.0 255.255.255.0 default-router 192.168.100.1 dns-server 192.168.100.1 lease 7 update arp ! ! ! ip domain name (removed from public view) ip name-server (ISP IPv4 Address removed from public view) ip name-server 188.8.131.52 ip cef ipv6 unicast-routing ipv6 cef ! ! license (removed from public view) license (removed from public view) ! ! username (removed from public view) ! ! controller Cellular 0 ! ! interface FastEthernet0 description MGMT Port no ip address ! interface FastEthernet1 description LINK TO SG200-18 CORE SWITCH no ip address ! interface FastEthernet2 description LINK TO AIR-AG1242 WIFI ACCESS no ip address ! interface FastEthernet3 description LINK TO CiscoCCNALab no ip address ! interface FastEthernet4 description $ETH-WAN$ ip address (Static IPv4 address removed from public view) ip nat outside ip virtual-reassembly in duplex auto speed auto ipv6 address autoconfig ipv6 enable ! interface Cellular0 no ip address encapsulation ppp ! interface Vlan1 description VLAN1 WAN ROUTER ip address 192.168.100.1 255.255.255.0 ip nat inside ip virtual-reassembly in ! router rip version 2 passive-interface Vlan1 network 192.168.100.0 no auto-summary ! ip forward-protocol nd ip http server ip http authentication local ip http secure-server ip http timeout-policy idle 60 life 86400 requests 10000 ip flow-top-talkers top 5 sort-by packets cache-timeout 3600 ! ip nat inside source list 101 interface FastEthernet4 overload ip route 0.0.0.0 0.0.0.0 ( Static IPv4 address removed from public view) permanent ip route 0.0.0.0 0.0.0.0 FastEthernet4 ! ! access-list 101 permit ip 192.168.100.0 0.0.0.255 any ! banner login ^CThis is a private home network if you have accessed this network without me providing you with a username and password then you are truspassing and as such you are required to logout now and never return. ^C ! line con 0 exec-timeout 5 30 login local no modem enable line aux 0 line 3 no exec line vty 0 4 privilege level 15 login local transport input telnet ssh line vty 5 15 privilege level 15 login local transport input telnet ssh ! ! end
The problem was the wrong MAC address was assigned to the static IP Address at the ISP sides. Once the MAC STATIC IP issue was resolved the configuration worked great and has every since September 22 that would be 3 months. Open to question