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Connecting two networks

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Montero84

Technical User
Jul 17, 2008
579
US
Hello,

I hope you can give me some ideas about how to do this..

In one building we have a network 10.100.x.x and next to this building there's another office with network 192.168.1.x. Each network has their own ISP. We need that the network 192.168.1.x talk to a server in the network 10.100.x.x.

I was thinking on running a cat5 cable from one building to another because they are one next to the other and I was wondering, can I just install a cisco pix between the two networks in order to allow traffic from network 192.168.1.x talk to the server in the network 10.100.x.x?, or do I need to place a router between?

Please advise!

Thanks in advance!
 
What type of rouers do you have a both locations?

Where is the internet connection at both sites?

I quick solution would be to install a cat 5 cable (depending on the distance) from router to router...

This can be done with fast ethernet or 2mft cards...

Setup a WAN type connection using say 192.168.2.1 and 192.168.2.2 subnet 255.255.255.252.

You can setup a static route or EIGRP and redistribute the static route for the internet possibly doing away with one an save some $$$$$$$...







[americanflag] Go Army!
Tek-TIP Member 19,650
 
The distance between closets is only 10mts... Do I still need to have two routers in each location?... are two separated networks.. I only need host in the network 192.168.1.x be able to see a server in the network 10.100.x.y

I was thinking on running a cat5 cable from one closet to another and use a cisco pix between... any idea?

Thanks!
 
How else are you going to get to the differnt networks correclty? Unless you combine the two sites into one network... Then all is good!

There are several possible ways to accomplish this task, choose what you can afford...


[americanflag] Go Army!
Tek-TIP Member 19,650
 
Yes---the PIX will work. It is a layer 3 device, and that is all you need for two separate subnets to communicate---a routing device in between (PIX, L3 switch, router).

Burt
 
Hello Burtsbees...

Ok, then I can use the cisco pix or a cisco router between the two networks...what device would you pick the pix or the router?...

one more question.. I know my default gateway would be the ip address in the router.. but how do I do when I have a high speed DSL connection to the internet... and the pix or router to connect with the other network?.. I have a Windows Server... how do the host know what route to take depending if it's going to internet or the other network?... I know it has to be some configuration in the windows server.. the windows server is running DHCP... please advise

Thanks again
 
First, describe the current topology...

Building One
Internet---what_is_here?---10.100.x.x

Building Two
Internet---what_is_here?---192.168.x.x

"what_is_here?" would be the device that routes between your LAN and the internet. We'll go from there...

Burt
 
Hello burstbees

Building One
Internet---Router----Switch---10.100.x.x
|
|
Win server (DHCP)



Building Two
Internet---Firewall---Switch----192.168.1.x
|
|
Win Server (DHCP)

I need something like this:

Building One
Internet-------------Router----Switch---10.100.x.x
| |
| |
| Win server (DHCP)
|
|
|
Building Two |
Internet---Firewall---Switch----192.168.1.x
|
|
Win Server (DHCP)

I Know if I use the IP address in the router as my Gateway.. I will be able to ping host in the two networks.. the thiing is.. the network 192.168.1.x has already a Gateway to access the internet.. so, what do I do to let the host know Gateway 192.168.1.1 is for the internet and i.e. gateway 192.168.1.254 is the router to access the oher network?

Thanks in advance!
 
Oops...

I see some line moved in the beautiful design... in building one.. the Win server is connected to the switch.. in building two the Win server is connected to the firewall.

And finaly, The router in building one woul be connected to the switch in building two...

Thanks!
 
Heres what I would try. Connect the switch in blg one to the switch in blg two via trunk port. Setup vlans seperating the two networks. Connect the router in bldg one to the switch in bldg one via trunk port and setup 802.1q encapsulation on the routers ethernet using sub interfaces...

bldg one router---to----blg one sw--to bldg two sw--to PC


[americanflag] Go Army!
Tek-TIP Member 19,650
 
Are there any security requirements involved?? Are both networks under your administrative control??
what do I do to let the host know Gateway 192.168.1.1 is for the internet and i.e. gateway 192.168.1.254 is the router to access the oher network?
Static routes or a routing protocol. What make/model switches are on both networks??

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)
 
Hello
The Best design would be the router terminating the Internet connection/s.The PIX behind the router and 2 Vlans on the PIX.
Regards
 
Hello,

Thank you for all help!...

Yes, there are security requirements involved... Only one network is under my administration control... the other building/network is own by another company... we just want to allow traffic from their network to one server in our side... I think I figured out how to resolve this issue... I will let you know if this work.

Thanks again!
 
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