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NNTP-Posting-Date: Sun, 21 Jan 2007 16:48:36 -0600
From: ibuprofin@painkiller.example.tld (Moe Trin)
Newsgroups: alt.os.linux.ubuntu
Subject: Re: Wireless IP Broadcasting...
References: <1320509.JKaD1Ytgvs@efcmoog.efc>
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On Sun, 21 Jan 2007, in the Usenet newsgroup alt.os.linux.ubuntu, in article
<1320509.JKaD1Ytgvs@efcmoog.efc>, Moog wrote:
>Router: Lynksys (DHCP Enabled)
Are you saying that your laptop gets it's address from the router using DHCP?
>Firewall: None - switched off to confirm it wasn't effecting the issue.
Verify that using '/sbin/iptables -L'
>Problem: No HTTP internet connection (I can infrequently send/receive NNTP
>and FTP, but this is hit and miss)
If it works for other services - even intermittently, it's not a routing or
network configuration problem. Firewall or screwed up application - yes.
>OK. I've done as much trouble shooting as my limited knowledge of Ubuntu
>allows and the one difference I can see between the above problem and my
>trouble free connection at the same location in WinXP is the "broadcast IP"
>setting of 192.168.1.255.
Windoze merely doesn't bother identifying it as being the broadcast. However
if this is a DHCP setup, the broadcast address is determined by the network
mask and the assigned IP address - from the DHCP server. A DHCP client has
no control over that. However, as you can get _something_ out, this is not
the problem.
>Question 1: Could this IP broadcast be sending the router or AP off the
>boil?
No
>and consequently
>Question 2: Which Config file would I need to edit to change the setting and
>any suggestions on settings to use in the IP range specified?
If you are using DHCP, this is an item you configure on the DHCP server, not
the client.
>By the way, the routing table at /sbin/route looks fine. Google has also
>been rather unfriendly.
Neither statement tells us anything.
You have some kind of application problem, not a networking problem. If it
were networking, there would be NO connectivity - no FTP, no NNTP, nothing.
Can you ping a host like datemas.de by _IP_ address (213.239.198.154)?
Can you ping it by name? Can you ping it with a 1480 byte echo?
[compton ~]$ ping -c1 -s 1480 213.239.198.154
PING 213.239.198.154 (213.239.198.154): 1480 data bytes
1488 bytes from 213.239.198.154: icmp_seq=0 ttl=50 time=597.2 ms
--- 213.239.198.154 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 597.2/597.2/597.2 ms
[compton ~]$
Use the -c1 to limit the abuse of ping. The idea is to see if you have a
connection, not to abuse the remote host.
Also look at the contents of /etc/resolv.conf - there should be one to three
lines beginning with the word 'nameserver'. Any name server listed must be
able to resolve ALL queries directed to it. If you are using DHCP, this is
probably the IP of your router. Also make sure you have NOT enabled IPv6,
as this can confuse some of the more stupid name servers such as those found
on wireless routers.
Old guy
* Origin: Omicron Theta BBS (1:261/20)
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