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 10.0.0.0 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 any #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 msfrom 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) |
