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Old 12-15-2011, 05:57 PM   #1
aofwnb2d
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Registered: Dec 2011
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can ping red side of ipcop firewall but cannot reach internet. I can see ipcop in my


Hello. I am trying to setup ipcop firewall. I can ping the red side from the green. however I can not reach the internet. Any Help. Please.
 
Old 12-16-2011, 04:14 AM   #2
eeekster
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Can you get to the Internet with the firewall disabled?
 
Old 12-16-2011, 06:59 AM   #3
gdejonge
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Registered: Aug 2010
Location: Netherlands
Distribution: Kubuntu, Debian, Suse, Slackware
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First:
Try pinging some server on the internet. Something like this. (The used ip address is of one of google's name servers)
Code:
Orion:~$ ping -c 4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_req=1 ttl=54 time=21.1 ms
64 bytes from 8.8.8.8: icmp_req=2 ttl=54 time=21.4 ms
64 bytes from 8.8.8.8: icmp_req=3 ttl=54 time=20.6 ms
64 bytes from 8.8.8.8: icmp_req=4 ttl=54 time=21.1 ms

--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 20.674/21.089/21.414/0.285 ms
This will tell you if there is a connection to the internet.


Second:
Check your default gateway:
Code:
Orion:~$ netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.10.254  0.0.0.0         UG        0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
192.168.10.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0
The bold value should point to the address of your firewall's green address.


Third:
Try to do a name lookup
Code:
Orion:~$ nslookup google.com
Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
Name:   google.com
Address: 209.85.147.105
Name:   google.com
Address: 209.85.147.99
Name:   google.com
Address: 209.85.147.103
Name:   google.com
Address: 209.85.147.147
Name:   google.com
Address: 209.85.147.106
Name:   google.com
Address: 209.85.147.104
This will tell you if your nameserver is configured correctly.
 
Old 12-17-2011, 08:47 PM   #4
aofwnb2d
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Registered: Dec 2011
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Cannot connect

I really think I have a network card problem. I am looking to get a 4 port card.
Thanks for your help.
 
  


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