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Old 07-10-2003, 08:01 AM   #1
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Registered: Jul 2003
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iptables and routing

hi ,
am tired of thes problem, i hope i can find any help.
i have 2 LAN, connected by fraction t1 line, NOS is windows NT 4,,
i establish trust relationship between the 2 domain , so i can share file, and manage the user account and right form offic A. in office A i have internet service , i build firewall and add squid to work as transpernt proxy, think is ok, the point is , i want officeB be to have internet through office A, so i would connect the router2 to the firewall , the figer below show whate i want to accomplish.
| fractional t1 line
router 1
firewall ---------- router 2------fractional t1 line ---router , my office B lan
my offic A lan

same time i have
#keep the trust between the 2 site
#be able to manage the bandwidth of internet service ' give office B 30% of the total bandwith

please if any one have any idea send me,
thank you all
best regard.
Old 07-10-2003, 12:42 PM   #2
Registered: Apr 2003
Distribution: Mandrake 9.1/slack 9.0/BSD
Posts: 30

Rep: Reputation: 15
The proper way to set this up is like so...

Internet ---->linux PC(router/firewall)<---->hub/switch<--->winNT PC


Internet---->linux PC(router/firewall)<----(crosswired patch cord)--->winNT PC

If you already got a standalone router, you can also hook it up like I am about to show you, but I sugest (for better security) that you use the router as a simple switch/DHCP server, and use one of the methods above - using your linux box as the firewall/router.

--------------------------->Linux PC
----------------------------WinNT PC


If you need a good howto on setting up IP masqurarading (to use your Linux box as a router/firewall) visit , they got lots of good howto's that are well laid out...
Old 07-10-2003, 01:01 PM   #3
Registered: Apr 2003
Location: Not to far from the computer screen
Distribution: RedHat 9.0
Posts: 324

Rep: Reputation: 30
why not just have lan b setup just like lan a, and then use a vpn tunnel ?

as far as i was aware, you couldn't get your own t line directly to another building


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