connection problems

iluzion · n00b Joined: 28 Nov 2005 Posts: 18

I've been having connection problems since very shortly after installing gentoo. I randomly lose connection to the internet until I dhcpcd. While it is down, I , for example, cannot connect to www.google.com, but I am succesfully able to ping it without loss. I run a dual boot machine and have no connection problems whatsoever while booted to windows.

wrightg · Posted: Tue Nov 29, 2005 3:10 am Post subject:

This sounds like your nameserver is not set up correctly.

The file that you need to edit is /etc/resolv.conf

There should be one or two entries in there that point to your nameserver.

In gentoo, your network connections are controlled through /etc/init.d/net.eth0 (the extension is based on the type of connection that you are using).

Type:

iluzion · n00b Joined: 28 Nov 2005 Posts: 18

thanks for the reply.. im actually using eth1 (im not sure why it ended up like that) so i ran what you said but for eth1, obviously. everything restarted and came up with no errors.

wrightg · Posted: Tue Nov 29, 2005 3:31 am Post subject:

Ok. That's good.

Can you ping 64.233.167.99?

Can you ping www.google.ca?

Take a look at your /etc/resolv.conf file

Finally, if everything seems to be in order just set your system up so that /etc/init.d/net.eth1 is run at boot time. You do this by typing:

iluzion · n00b Joined: 28 Nov 2005 Posts: 18

is this stuff i should do right now, or just the next time my internet decides to go down on me?

wrightg · Posted: Tue Nov 29, 2005 11:27 pm Post subject:

I cannot say definitively but it sounds to me like your ethernet device(s) have not been setup properly.

If you want to be proactive, you can try to fix up your configuration right away. It may take a bit of work to track down what the problem is -- however, tackling the problem in a controlled manner is typically preferred to facing the same problem in panic mode. Before you start, I would make sure that you can obtain internet access using some other method -- either another machine on the lan or perhaps downloading and burning yourself a Knoppix CD.

I would take a look at the following section and then check back if something is not adding up.

http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=8#doc_chap2

Best of luck.

iluzion · n00b Joined: 28 Nov 2005 Posts: 18

the connection just went down again, i did everything you said in your first, and changed the one thing that i found to be different in the gentoo link you gave me (in net: under code listing 14: it was dhcp_eth1="", now it is the same as in the listing)

heres the results from your post:

ip: 54% packetloss first try, second was fine
google.ca: fine

resolv.conf:
# Generated by dhcpcd for interface eth1
domain housing.res.kent.edu
nameserver 131.123.246.1
nameserver 131.123.1.1

yes i have two onboard NIC's

grep eth:
forcedeth.c: Reverse Engineered nForce ethernet driver. Version 0.41.
eth0: forcedeth.c: subsystem: 01043:80a7 bound to 0000:00:04.0

wrightg · Posted: Wed Nov 30, 2005 3:18 am Post subject:

Hi iluzion,

Thanks for hanging in there... -- I must admit that this is very strange and frustrating.

The first thing that I would try is to use the other ethernet card. It is not unheard of that the card or the driver is buggy. I am not familiar with the forcedeth driver but let's try something out here. Can you post the output from

iluzion · n00b Joined: 28 Nov 2005 Posts: 18

0000:02:01.0 Ethernet controller: 3Com Corporation 3C920B-EMB Integrated Fast Et hernet Controller [Tornado] (rev 40)
Subsystem: ASUSTeK Computer Inc. A7N8X Deluxe onboard 3C920B-EMB Integra ted Fast Ethernet Controller
Flags: bus master, medium devsel, latency 32, IRQ 17
I/O ports at c000 [size=128]
Memory at e1000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at 50100000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2

0000:00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet Controller
(rev a1)
Subsystem: ASUSTeK Computer Inc. A7N8X Mainboard onboard nForce2 Etherne
t
Flags: bus master, 66Mhz, fast devsel, latency 0, IRQ 16
Memory at e6086000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e400 [size=8]
Capabilities: [44] Power Management version 2

it is a asus a7n8x delux (incase you wanted to look up anything about the NIC's) both are ethernet ports. as for the cisco clean access stuff, what it is to a windows box is an application you must run that makes sure virus protection, windows updates, firewall, etc are on, and you do not have a virus. to a linux box, it is simply a web login on boot. if i was kicked off the campus network, it would not allow me to open any internet connections until i logged in on a browser, this isnt the case because it just sits there trying to load a page until it times out.