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Using two routers

by asterof / March 22, 2007 12:26 AM PDT

A perplexing problem

Company has its own Intranet
Company has a router connected to it's LAN "A" Intranet for access to
the Internet, and gets it's WAN IP as dynamic from it's ISP
The LAN "A" IP address's are served from it's router on it's Intranet
This is a typical set up, we all have done.
Now I need to add a new LAN "B" that has it's own IP address scheme
This new LAN "B" will use ALL nailed IP's
This is simple enought....
However I need a gateway to allow LAN "B" to send email
to users on LAN "A".
And have a way to allow assigned people on the Internet to Access
a web server located on LAN "B"
LAN "B" will be connected to LAN "A" using a router that will
get it's WAN IP Address from the router on LAN "A" as dynamic
Is this possible ?

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Collapse -
as long a router B
by ask4anu / March 23, 2007 1:45 AM PDT
In reply to: Using two routers

is using a different subnet then router A
and i thnik you will have to set up router A STATIC

which i would just use a bridge or three routers or a switch
using a firewall router as the main gateway
then branch off to the other 2 routers from it
or a switch from the main gateway to lan a lan b
or a bridge between the main gateway to lan a lan b
just make sure to use different subnets for each node

this can be done buy using actual routers or buy using
an old computer set up as a dhcp running router software
and a couple of nic cards

and i would use vpn (create a preshared key and encrypt it then paste in preshared key box if your equipment supports vpn)from the main gateway to lan a and b just for added protection this will create a vpn between the main gateway and the other nodes only from the front side of the main gateway to the internet will not be a vpn connection but from the back side of the gateway to lan a and b will communicate using vpn making it hard for unsecured attempts to pass through BRIDGES are good
for security also as it is hard to navigate across them
which cuts out 85% of all hackers dead in there tracks
the other 15% that can do this dont even waste there time cause there allready to busy WORKING!!!!!!


Collapse -
So you are saying
by asterof / March 23, 2007 2:22 AM PDT
In reply to: as long a router B

That Router A needs to be static or I need Router B to Get a Static Address from router A.
Setting up router A as a static not a dhcp is not in my power
LOL it is part of the companies Internet, and I have no say in that.

Collapse -
Router A needs to be static
by ask4anu / March 23, 2007 1:58 PM PDT
In reply to: So you are saying

Which puts that router up on the internet leave Router b has to be Static also to get the ip from A

which is a VERY BIG Security issue as your intranet is now public and can be hommed in on like a ant running through the JUNGLE

which is why i would make the link between router A
to B C,D,E,F,H and so on VPNs using a preshared key
that you create dont tell know one the key only people you want to access the network THEN ENCRYPT THAT KEY USING an ENCRYPTION SOFTWARE PASTE it to the routers VPN setup page if your equipment supports VPN if it dont
i wouldnt recommend what your going to do

if you use any windows OS xp home or after turn on IPSEC
make your own rules or use one provided already just use your preshared key in IPSEC you can learn about IPSEC here


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