Go Back   DaemonForums > Miscellaneous > General software and network

General software and network General OS-independent software and network questions, X11, MTA, routing, etc.

Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1   (View Single Post)  
Old 29th September 2008
PatrickBaer PatrickBaer is offline
Fdisk Soldier
Join Date: May 2008
Posts: 81
Default Funny network behaviour :)

A little riddle for everyone. I am really stumped and have no idea why that happens.

So here we go:

I have a Wifi setup with five APs without authentication. They are connected to the WAN via an SMC gateway, which does web-based password authentication. so the procedure is: Customer connects to an SSID and gets an IP-adress via DHCP, enters some URL and gets forwarded to the login-page, enters his personal login-data, can browse the web.

The internal setup is like this:

Gateway and default router is
Static IPs are ranged from through
DHCP adress range is from .128
APs have a static IP-adress from for AP1 .12 for AP2 and so on.
All devices have netmask!

As the IP range is obviously not routed outside the internal network, the administration-machine is connected via LAN to the internal network. When plugging in, the admin-machine gets an IP-adress via the gateway, e.g. netmask default gateway The machine can login via web-interface and then access the external net. So far so good.

Now I want to connect to the other APs and configure them via http. And this is where the fun begins:

A simple ping results in a timeout to all devices except the gateway itself. So I thought about some setup failure and used a static IP-adress like

Still, no responses to pings. Now, I did a broadcast ping to and voila, APs 1 through 4 came responded! Number 5 remained silent. From that point on, I could access the APs via http also, even AP5, although it still did not respond to any ping.

Suddenly, AP5 stopped responding to http requests. So I did another broadcast ping. AP5 still not responded to the ping, but came back answering http-requests! Actually, as long as i kept pinging, the AP5 was ok, without the ping it remained silent.

After some minutes, the authentication on the APs timed out and I needed to reauthenticate. But when entering the IP into the browser bar, it did not connect, but instead forward to an adress like http://http.

I think this has something to do with my internal network setting switching from the class B network to a class D and hence passing the IP to the router instead of staying in his own range.

Can someone explain this?

BTW, I also connected another laptop with ubuntu And did a broadcast ping, which showed some APs as well, but not all, like BSD did!

Oh, and if I connect to the APs with a direct connection, they work just fine.
Reply With Quote

Thread Tools
Display Modes

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 On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Funny stuff Carpetsmoker Off-Topic 556 2nd January 2018 02:01 PM
Check this out (funny contest). fbsduser Off-Topic 6 4th March 2009 10:48 PM
Network settings guitarscn OpenBSD General 13 18th February 2009 01:45 AM
strange behaviour after improper shutdown karri FreeBSD General 1 15th October 2008 03:08 PM
Funny things in /usr/share/misc ivanatora FreeBSD General 4 10th August 2008 02:13 PM

All times are GMT. The time now is 08:32 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick