Last week was my first time configuring a Cisco router and I’ve run into an issue that I can’t seem to get past. My situation is that I am configuring this to act as a DHCP server on FastEthernet0/1 and have a static address on FastEthernet0/0. DHCP requests are being served fine and from a DHCP client I can ping both interfaces on the router, however I cannot get past the router to anything on the other side of it. (e.g www.cisco.com) From the router itself I can ping anything on the web, but behind the router I can’t. I’m not sure if this is an issue with an acl or with a router I either am missing or have setup incorrectly. Any help would be greatly appreciated and my configuration is below:
Thanks!
Dave
Current configuration : 1514 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname MSM-Wireless
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$a3iE$/Dxe0bN7SheysVcB6WHKY/
enable password abcdefg
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
no aaa new-model
ip subnet-zero
ip cef
!
!
ip dhcp excluded-address 192.168.200.1
!
ip dhcp pool MSMWireless
network 192.168.200.0 255.255.255.0
default-router 192.168.200.1
dns-server 12.127.16.83 12.127.17.83
lease 7
!
!
ip name-server 12.127.16.83
ip name-server 12.127.17.83
no ftp-server write-enable
!
!
!
!
interface FastEthernet0/0
ip address 12.100.112.163 255.255.255.192
speed auto
half-duplex
no mop enabled
!
interface FastEthernet0/1
ip address 192.168.200.1 255.255.255.0
ip nat inside
duplex auto
speed auto
!
interface Serial0/0/0
no ip address
shutdown
clockrate 2000000
!
ip default-gateway 12.100.112.129
ip classless
ip route 192.168.200.0 255.255.255.0 12.100.112.129
ip http server
!
!
snmp-server community public RO
snmp-server enable traps tty
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
password acdefg
login
!
{ 3 comments… read them below or add one }
You need to setup NAT because 192.168.200.x addresses are not routable on the internet. Add this to your config
int fa0/1
ip nat inside
int fa0/0
ip nat outside
access-list 101 permit ip 192.168.200.0 0.0.0.255 any
ip nat inside source list 101 interface fa0/0 overload
Sorry missed this one -
can you change -
ip default-gateway 12.100.112.129
to
ip route 0.0.0.0 0.0.0.0 12.100.112.129
I will do this first thing when I get into work in the morning. I will keep you posted…
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