Wireless DNS Issue
 

I just installed the newest SimplyMepis, looks great! Everything was configured from the start except my wireless card. I set up NDISWRAPPER to work with my D-Link DWL-G510 on the Marvell W8300 chipset and that seemed to work with my DWL-624 router.

However, when I try to load a page in firefox, it just times out when resolving the domain. Obvious DNS issue, but where? I can log in to my router admin page - 192.168.0.1 - without a hitch so are there any settings I should change there or in the Mepis control panel? If I use DHCP or manually input the settings, I get the same result.

I'm using a managed connection, no wep or wpa.

It's late so I'm sure it's necessary to include more info than I've included to diagnose this, but I'm hoping it's an easy fix, and if not... I'll post it tomorrow.

Here's my Lan:
LAN
MAC Address
00-0F-#D-#F-#5-A0
IP Address
192.168.0.1
Subnet Mask
255.255.255.0
DHCP Server
Enabled

My Wan:
MAC Address
00-##-##-#F-#E-#A
Connection
DHCP Client Connected
IP Address
192.168.1.96
Subnet Mask
255.255.255.0
Default Gateway
192.168.1.254
DNS
65.7.xxx.xxx

I've posted this question on the mepislovers.org forum and I was told to guarddog firewall is the reason why I can't connect to domain names. If this was the case why can I login to my router address - 192.168.0.1 - as I assume this is connecting through port 80. I am able to ping my wan IP 65.7.xxx.xxx so I believe there is something I'm missing.

Right now I'm using DHCP, if I use manual settings what is the broadcast iP supposed to be, default? 192.168.0.255?

Thanks for any feedback.

You probably need to setup the firewall to allow dns requests through. You can login to the router because it doesn't need todo a dns request to resolve the domainname.

That makes sense, I'll try this when I get off work. Thank you much.

Iwould just turn off the firewall and test..

if that works.. then do as Priller suggested..

does the problem only exist in FireFox.? Do you get the
same behavior in Konqueror??

hth

Yeah I'm going to turn it off. It's not just in Firefox but also Konq, and if I try to ping an domain name, it doesn't resolve.

cat your /etc/resolv.conf

should look something like this ( I am on Cox's network)

you should have your ISP dns servers in there..
also try
netstat -rn..

should look somthing like this

hth

Ok, disabling the firewall didn't do anything for me. the solution seems obvious to you guys but to me, I just need help putting it all together. Here's all the info out on the table. Hopefully this will yield success.

Here's the output of netstat -rn:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
0.0.0.0 0.0.0.0 0.0.0.0 UG 0 0 0 wlan0

...something seems off here?

Here's the output of cat /etc/resolv.conf:
search launchmodem.com
nameserver 192.168.0.1

....it looks like my router has become my name server?


Here's my setup in MEPIS OS Center > Network Interfaces:

Status
lo ip: 127.0.0.1
eth0 ip: down
wlan0 ip: 192.168.1.100
wireless is: on wlan0
-----
Wireless
ess id: xxxxxx
mode: infrastructure
#then i have none of the following checked
encryption key
frequency
nwid/domain (cell id)
----
wlan0
[x] Use DHCP for IP
Timeout: 15 sec
------------------------

ok.. now the solution.. is not obvious.. we are troubleshooting here.. :-)

not every problem is the same.. so hang in there..

do me a favor.. check your wireless router configuration.. you should get
2 or 3 dns servers and your gateway listed..

also.. do you have dhcp enabled on your router..???
if so you should also get your ISP dns servers on your
client ..

Ok, I'm trying to be patient, but it's like I'm so close to finally getting linux fully functional on my computer that it's driving me even more insane! :]

Straight from my router:

LAN
MAC Address 00-0F-#D-#F-##-A0
IP Address 192.168.0.1
Subnet Mask 255.255.255.0
DHCP Server Enabled

WAN
MAC Address 00-11-95-2F-4E-5A
Connection DHCP Client Connected
IP Address 192.168.1.96
Subnet Mask 255.255.255.0
Default Gateway 192.168.1.254
DNS 65.7.###.##

Wireless 802.11g (mixed mode)
SSID defunk
Channel 6
Encryption Disabled

On this winxp laptop, "ipconfig /all" shows:
Ethernet adapter wireless network connection:
connection-specific DNS suffix: launchmodem.com
description: high rate wireless adapter
physical addres: some #'s
DHCP enabled: YES
Autoconfig enabled: Yes
IP Address: 192.168.0.101
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP server: 192.168.0.1
DNS Servers: 192.168.0.1
Lease obtained
Lease expired

Keep the help coming, feels like we're getting somewhere.

something is amiss with your WAN configuration..
The IP should be something other than
192.168.x.x ( that is private IP space)

[quote]
Q. What are private IP addresses?
A. The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets (local networks):

10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255

Also, IP addresses in the range of 169.254.0.0 -169.254.255.255 are reserved for Automatic Private IP Addressing.

These IP's should not be used on the Internet.
[/quote ]

Unless your cable/dsl modem is also running a dhcp server.. ??
that would be the reason for the private ip addresses you are
seeing on your WAN...

Is your Router directly connected to your cable/dsl modem?

go ahead and describe your network setup including model
numbers on the modem and router..

i.e.
mine

surfboard cable modem (model #)
|
|
OpenBSD 3.6 firewall
|
NetGear Switch
/ \---- Windows PC
/ \
Linux Linux Mail Server
PC

Hey here's my setup:

Westell Wirespeed DSL Modem >
|
D-Link DWL-624 Router >
|
Now I have one desktop hardwired (XP) and 3 computers wireless: Desktop w/ MEPIS using DWL-G510 PCI Card(suspect in question), IBM Laptop (XP), Compaq Laptop (win2000)

Sincerely, thanks for your time everyone in diagnosing this for me.

did you know your Westell Wirespeed DSL router
is also doing DHCP???
and your wireless
router is also doing DHCP...

so you are doing a double NAT... which works ok.. for the
most part..

My guess is that you are only having problems with all
your machines..???? based on your output from
ipconfig /all..

Simple fix:
Put your DNS IPS in your wireless router.. then your clients
should get them..
I would turn off the DHCP server in DSL router and assign
a static address to it..

or...
just get a PCMCIA card and plug it into your DSL modem.. remove
your D-Link from the picture..

Googling on your modem
here

No, the thing is every computer works, besides my Linux box running MEPIS. I have just set up this computer with MEPIS and am just trying to get the same settings I have on my windows boxes (which detected it automatically btw) running with MEPIS.

I C..
hmm..
post your ifconfig from your Mepis box..

could be that your wi-fi isn't supported..

I do believe that my wi-fi is supported because it's known to work with ndiswrapper for others. And also, like I said, I can connect to my router. Also, using kWiFiManager, when I scan for networks I am able to see my router's SSID and it appears to connect.

Here's my ifconfig output:

lo:
Link encap: Local loopback
inet adddr: 127.0.0.1 Mask: 255.0.0.0
inet6 addr: ::1/128 scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric: 1
RX packets: 10 errors: 0 dropped:0 overruns:0 frame:0
TX packets: 10 errors:0 dropped:0 overruns: 0 carrier:0
collisions: 0 txqueuelen:0
RX bytes: 500 (500.0 b) tx bytes:500 (500.0 b)

wlan0:
Link encap:ethernet HWaddr 00:11:95:2F:4E:5A
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80:211:95ff:fe2f:4e5a/64 scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:122 errors:0 dropped:0 overruns:0 frame:0
tx packets:106 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
rx bytes:30722 (30.0 KiB) tx bytes:14674 (14.3 KiB)
Memory:ed000000-ed00ffff

Thanks again.