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IPTables question

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Special Forums IP Networking IPTables question
# 1  
Old 02-20-2011
IPTables question
Hope someone can help cus m really stuck.
Im pretty good at making basic IPTables rules to get what i need done, but this one has me beat.

I have only 1 Nic in my linux box , and its setup as a trunk to my switch.
I have 5 vlans setup on it:

eth0.1000
eth0.1001
eth0.1002
eth0.1003
eth0.1004

I can get it to route between the vlans without trouble using a simple
-A INPUT -i eth0.1000 -j ALLOW
-A INPUT -i eth0.1001 -j ALLOW
-A INPUT -i eth0.1002 -j ALLOW
......ect
With forward, input and output set to accept.

Now if I ssh to any machine on any Vlan it routes between them perfectly.

PROBLEM IS:

Reversing the accept to drop and lock down the routes to just allow SSH.
If tried things like -A FORWARD -i eth0.1000 -o eth0.1001 ect and I cant get it to allow ssh from and to my separate vlans.

Can anyone help, all i want is a basic iptables to allow ssh from any machine on any vlan to any machine on any vlan, but block everything else.

Thanks for ANY advice.

Steve
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LEARN ABOUT DEBIAN

gdevilspie

gdevilspie(1)						      General Commands Manual						     gdevilspie(1)

NAME

       gdevilspie - Graphical interface to devilspie.

SYNOPSIS

       gdevilspie

DESCRIPTION

       gdevilspie gDevilspie is a graphical front-end to the devilspie daemon.

OPTIONS

       Example: Adding File Manager (Nautilus) to Workspace 3, maximized horizontally.

       Launch gDevilspie
       Click on the Add button
       Type in the name of your new rule

       In the Matching Tab check the box for window_class and application_name.
       Type File Manager in the equals box in the right pane of the Rules Editor for both
       of the Matching Property items above.

       An alternative way of producing the above would be to launch the application you wish to setup.
       Click on the gDevilspie Get button, locate your application within the Window Selector box,
       highlight it then click apply. This will populate the equals field for you.

       Click the Actions Tab.
       Check the set_workspace box and set the workspace to 3.
       Click the maximize_horizontally check box.
       Click Save.
       Click Stop then Start on the gDevilspie main window for good measure.

       Here is your output in the raw tab:

       ( if
       ( begin
       ( is ( window_class ) "File Manager" )
       ( is ( application_name ) "File Manager" )
       )
       ( begin
       ( set_workspace 3 )
       ( maximize_horizontally )
       ( println "match" )
       )
       )

       Using the example above you can configure gDevilspie to set your applications to run many different ways.

AUTHOR

       Islam Amer <iamer@open-craft.com>.

       This manual page was written by Chris Silva <racerx@makeworld.com>, for the Debian project (but may be used by others).

version 0.50							   June 12, 2010						     gdevilspie(1)