View Full Version : [ubuntu] [SOLVED] LAN hosts can't see the other but each still have Internet.

May 11th, 2008, 09:41 PM
Just a few months back I could play with nmap in order to see the other hosts on my LAN. But now when I run nmap or a simple ping to a neighbouring host there's no connectivity. Yet each host where one of them is a Windows machine can reach the Internet without problems.
I went through the router settings but everything seems to be OK and I've disabled all port rules for every host on the LAN still nothing. :confused:

Also I pinged the router and I don't get any response. Still I can talk to you guys on the Internet. :confused: Also I did this but no difference.

bill@gates:~$ sudo route add default gw
SIOCADDRT: File exists

Got any tips for me?

May 12th, 2008, 02:19 AM
have firestarter or anything similar installed?

May 12th, 2008, 07:14 PM
Thanks that pinpointed the problem for me X-File closed. The MoBlock guys must've increased security with their latest upgrade. Still it's weird that it's possible to deny ping to Default Gateway while you still can ping Internet like www.google.com.

bill@gates:~$ sudo moblock-control stop
[sudo] password for bill:
Stopping MoBlock ...done.

bill@gates:~$ ping -c 3
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=64 time=0.967 ms
64 bytes from icmp_seq=2 ttl=64 time=0.969 ms
64 bytes from icmp_seq=3 ttl=64 time=1.03 ms

--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.967/0.990/1.035/0.040 ms