12-08-2008
Help determining what's blocking ports
I'm fairly new to networking and am trying to figure our network out, as I was recently assigned to be network administrator where I work. I was trying to get utorrent to work but am not having success in figuring out what's blocking my ports. As of now, I'm getting connected from a mikrotik wireless AP, a mikrotik wireless bridge connection over several miles apart (2 devices), a st. bernard iprism filtering hardware, a watchguard firebox, and a windows 2003 server.
Is there any way to determine which local ip is blocking a certain port so I could narrow it down? I've tried everything I could to forward ports on everything, but still no luck.
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LEARN ABOUT CENTOS
wireless
WIRELESS(7) Linux Programmer's Manual WIRELESS(7)
NAME
wireless - Wireless Tools and Wireless Extensions
SYNOPSIS
iwconfig
iwpriv -a
DESCRIPTION
The Wireless Extensions is an API allowing you manipulate Wireless LAN networking interfaces. It is composed of a variety of tools and
configuration files. It is documented in more detail in the Linux Wireless LAN Howto.
The Wireless Tools are used to change the configuration of wireless LAN networking interfaces on the fly, to get their current configura-
tion, to get statistics and diagnose them. They are described in their own man page, see below for references.
Wireless configuration is specific to each Linux distribution. This man page will contain in the future the configuration procedure for a
few common distributions. For the time being, check the file DISTRIBUTIONS.txt included with the Wireless Tools package.
DEBIAN 3.0
In Debian 3.0 (and later) you can configure wireless LAN networking devices using the network configuration tool ifupdown(8).
File : /etc/network/interfaces
Form : wireless-<function> <value>
wireless-essid Home
wireless-mode Ad-Hoc
See also :
/etc/network/if-pre-up.d/wireless-tools
/usr/share/doc/wireless-tools/README.Debian
SuSE 8.0
SuSE 8.0 (and later) has integrated wireless configuration in their network scripts.
Tool : Yast2
File : /etc/sysconfig/network/wireless
/etc/sysconfig/network/ifcfg-*
Form : WIRELESS_<function>=<value>
WIRELESS_ESSID="Home"
WIRELESS_MODE=Ad-Hoc
See also :
man ifup
info scpm
ORIGINAL PCMCIA SCRIPTS
If you are using the original configuration scripts from the Pcmcia package, you can use this method.
File : /etc/pcmcia/wireless.opts
Form : *,*,*,*)
ESSID="Home"
MODE="Ad-Hoc"
;;
See also :
/etc/pcmcia/wireless
File PCMCIA.txt part of Wireless Tools package
AUTHOR
Jean Tourrilhes - jt@hpl.hp.com
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
SEE ALSO
iwconfig(8), iwlist(8), iwspy(8), iwpriv(8), iwevent(8).
wireless-tools 4 March 2004 WIRELESS(7)