Main Hardware :
one router 2800
one switch 3500
My LAN 172.168..... is connected to f0/0 and internet is coming to f0/1 through dhcp from other network 10.0....
A#show ip interface brief
Interface IP-Address OK? Method Status Prot
ocol
FastEthernet0/0 172.168.0.2 YES NVRAM up up
FastEthernet0/1 10.0.3.182 YES DHCP up up
Serial1/0 unassigned YES NVRAM administratively down down
Serial1/1 unassigned YES NVRAM administratively down down
Serial1/2 unassigned YES NVRAM administratively down down
Serial1/3 unassigned YES NVRAM administratively down down
NVI0 172.168.0.2 YES unset up up
#show run
ip dhcp excluded-address 178.168.0.2
!
ip dhcp pool cisco.com
network 172.168.0.0 255.255.255.0
default-router 172.168.0.2
ip domain name ccna.com
interface FastEthernet0/0
ip address 172.168.0.2 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
ip address dhcp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
ip default-gateway 10.0.3.182
ip forward-protocol nd
no ip http server
no ip http secure-server
!
ip nat inside source list 100 interface FastEthernet0/1 overload
!
access-list 100 permit ip 172.168.0.0 0.0.255.255 10.0.0.0 0.0.0.255
#show ip route
Gateway of last resort is 10.0.0.254 to network 0.0.0.0
172.168.0.0/24 is subnetted, 1 subnets
C 172.168.0.0 is directly connected, FastEthernet0/0
C 10.0.0.0/8 is directly connected, FastEthernet0/1
S* 0.0.0.0/0 [254/0] via 10.0.0.254
Few ping results
1. ping to google from router
A#ping 4.2.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/19/24 ms
from pc to internet no ping. from pc to 172.168.0.2 (f0/0)ping works. In PC, dhcp providing ip and gateway but no internet coming. I think LAN part is ok including DHCP.
Problem : no internet coming in my LAN (please also see diagram)
