Internet connection problems...

**bogdane** · 04-03-2005

Hi,

My computer has a LAN connection and after setting up all parameters - IP, DNS, Gateway, etc.. i'am not able to load Web pages or these pages are loading very slow. I.e Yahoo.com. Others are loading very quick ( google, ethereal.com). I did the same test from Windows XP and Knopix and there are no problems. I'm currently using Mandrake 10.1 . Any suggestion?
The traceroute shows me that the 4-5 hop didn't answer. I noticed some checksum errors in the sniffer. Is this a known issue....

P.S. - I'm using a nonroutable IP address 192.168.7.174 mapped one to one ( using NAT ) to a routable address

Thanks
Bogdan

**smindinvern** · 04-03-2005

Are you using a local DNS server, it sounds like it might be a problem with that... what's the output of:

Code:

route

**bogdane** · 04-03-2005

The DNS is 192.168.254.168 but I think it just forward the request

Code:

root@gogu root&#93;# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.7.0     *               255.255.255.0   U     0      0        0 eth0
default         192.168.7.1     0.0.0.0         UG    0      0        0 eth0
&#91;root@gogu root&#93;#

**smindinvern** · 04-03-2005

first, post your /etc/conf.d/net.eth0 file, and try going between dhcp and static configuration, and make sure that portmap is running, just type 'portmap' without quotes in the terminal.

**bogdane** · 04-03-2005

There is no file you mentioned, but I supposed this is what you want. I changed the METRIC from 10 to 30, BTW I'm posting this messages from my Linux and I have no traceroute to linuxforums.org

It is so slow.....

[root@gogu root]# more /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.7.174
NETMASK=255.255.255.0
NETWORK=192.168.7.0
BROADCAST=192.168.7.255
ONBOOT=yes
METRIC=30
MII_NOT_SUPPORTED=no
[root@gogu root]#

**finklewicz** · 04-03-2005

I'd be interested in a solution as well, I've been hunting around for a couple of weeks trying to find a fix to the same issue.

I've tried pretty much everything that I've found out on the Web and I'm nearly at wits end.

**sdousley** · 04-04-2005

Have you tried using a DNS that your ISP gave you? or a public DNS server. In my DNS servers, i have my ISP's dns servers, and my connection is working nicely. It could be that your internal DNS server doesn't have that many entries, so if u ask it to translate say www.google.com to an ip it is taking a long time because it then has to figure it out (if it knows how)

**finklewicz** · 04-04-2005

I looked into my router's firewall security log and located my ISP's two DNS server addies.
I then used Mandrake control center to manually build a new lan connection under Network and Internet.
I plugged in the two DNS server numbers I found as DNS servers one and two. Is there some way to confirm that Mandrake isn't ignoring the new DNS's?
I seem to be having mixed results, but essentially I established a static IP connection with my router. I'll have to keep plugging away at it.

Thanks.

**sdousley** · 04-04-2005

u built a new lan connection? So u essentially have eth0 and eth1? If u want to use internal DNS to resolv local computer names, just add the local DNS server to a new line on the end of /etc/resolv.conf after the word name server eg;

Code:

nameserver xxx.xxx.xxx.xxx

but change xxx.xxx.xxx.xxx to the local DNS server

**bogdane** · 04-04-2005

I have only eth0 and no internal DNS. The DNS that ISP has gave me does only caching ( i guess ). The small number of entries doesn't explain why form Knopix and XP works fine..

finklewicz - did you try another OS on the same connection?

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