LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 12-15-2011, 04:57 PM   #1
aofwnb2d
LQ Newbie
 
Registered: Dec 2011
Posts: 2

Rep: Reputation: Disabled
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, 03:14 AM   #2
eeekster
Member
 
Registered: Sep 2011
Posts: 163

Rep: Reputation: Disabled
Can you get to the Internet with the firewall disabled?
 
Old 12-16-2011, 05:59 AM   #3
gdejonge
Member
 
Registered: Aug 2010
Location: Netherlands
Distribution: Kubuntu, Debian, Suse, Slackware
Posts: 317

Rep: Reputation: 73
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, 07:47 PM   #4
aofwnb2d
LQ Newbie
 
Registered: Dec 2011
Posts: 2

Original Poster
Rep: Reputation: Disabled
Cannot connect

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


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
IPCop firewall j447ft Linux - Software 1 05-03-2007 07:21 AM
ping fail from local lan to IPCop mrpc_cambodia Linux - General 3 04-03-2006 04:32 PM
ipcop firewall apenguinlinux Linux - Security 5 11-28-2005 01:47 AM
Need IPCop to IpCop VPN assistance Freddde Linux - Networking 1 09-15-2005 02:28 PM
ipcop -proxy: can ping ip but cannot browse internet prue3 Linux - Networking 0 02-03-2005 08:15 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 02:50 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration