In the above scenario, The Cisco 1720 can ping addresses on the internet and also addresses on the inside network, including f0, Loopback 0, and the LAPTOP. The LAPTOP cannot ping internet addresses, but it can ping f0, l0, and e0
LAPTOP receives it's IP address from DHCP that I set up on the 1720
I have tried plugging the LAPTOP directly into the INTERNET ROUTER and it works perfectly. No issues whatsoever.
Current configuration : 1427 bytes ! ! Last configuration change at 12:52:48 UTC Mon May 17 2010 ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname ROUTER ! boot-start-marker boot-end-marker ! enable secret 5 $*************************1 enable password bigapple789 ! mmi polling-interval 60 no mmi auto-configure no mmi pvc mmi snmp-timeout 180 no aaa new-model ip subnet-zero no ip routing ! ! ip domain name ROUTER.com ip name-server 10.10.10.1 ip dhcp excluded-address 192.168.1.1 192.168.1.50 ! ip dhcp pool dpool1 import all 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 domain-name ROUTER.com ! no ip cef ip audit po max-events 100 no ftp-server write-enable ! ! interface Loopback0 ip address 192.168.1.2 255.255.255.0 ip nat inside ! interface ATM0 no ip address no ip route-cache shutdown no atm ilmi-keepalive dsl operating-mode auto ! interface Ethernet0 ip address dhcp ip nat outside full-duplex ! interface FastEthernet0 ip address 192.168.1.1 255.255.255.0 ip nat inside speed auto full-duplex ! ip default-gateway 10.10.10.1 ip nat inside source list 1 interface Ethernet0 overload ip classless no ip http server no ip http secure-server ! ! access-list 1 permit 192.168.1.0 0.0.0.255 ! ! line con 0 line aux 0 line vty 0 4 password bigapple1 login ! ! end
I noticed that when pinging from LAPTOP to INTERNET, the "show nat statistics" does not change. When pinging INTERNET from f0 or LoopBack0, the nat statistics do increase.
Any help would be greatly appreciated! I am really stuck.
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