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1 server 2 NICs 2 ADSL connections

Posted on 2009-05-17
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Last Modified: 2013-12-02
Current configuration:

1 server
1 Built-In Nic
1 ADSL modem

Is it possible to use the existing 1 server and just plug in an extra NIC and subscribe for another ADSL line to increase my bandwidth?

For example:

Lets say ftp1.server.com points to NIC#1 + ADSL#1 and then ftp2.server.com points to NIC#2 & ADSL#2 but using the same server. Is it possible to configure it this way?
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Question by:fcqmax
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4 Comments
 
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Accepted Solution

by:
Lee W, MVP earned 500 total points
ID: 24409289
No.

You would need a dual broadband router.

And even then, you need to understand that you would still download ONLY as fast as the fastest connection.  You could, depending on dual router and its config, download TWO THINGS at faster speeds simultaneously.  For example,

ADSL1 = 3Mb/768
ADSL2 = 1.5Mb/768

AT THE SAME TIME:
Download from Web site 1 at 3Mb (via ADSL1)
Download from Web site 2 at 1.5Mb (via ADSL2)

The problem is you can only have one default gateway. So if incoming data comes in, but can only go OUT one NIC.  Now there are routers and systems that will "join" multiple lines in one, but I'm fairly certain NONE are for ADSL connections (they are usually for T1 and other business class internet connections; ADSL is considered consumer level).  That said, I don't know what they do in China, so you can always call your ISP and ask if they can...
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Author Comment

by:fcqmax
ID: 24409338
Ok, sounds like it's not possible with 1 server then. How about 2 servers then?

Maybe Server#2 maps to a folder on Server#1 in LOCAL LAN and then users can connect to ftp2.server2.com so they are actually still downloading from Server#1

I currently have:

2 VDSL BOXES both 10M/2M speeds

SERVER#1 has NIC#1 connected to VDSL#1

How would you design the rest to work?


Here's my take:

Add additional NIC#2 to SERVER#1

Setup SERVER#2 and add NIC#1 and NIC#2

SERVER#2NIC#1 connects to VDSL#2
SERVER#2NIC#2 connects to SERVER#1NIC#2 (bridge between servers)

SERVER#2 maps to SERVER#1 FOLDER

Then just setup the FTP SERVER to allow users to download from the mapped folder from SERVER#1

Will this work?
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Author Closing Comment

by:fcqmax
ID: 31582490
tks
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LVL 96

Expert Comment

by:Lee W, MVP
ID: 24409391
I used to have a cable and a DSL line at my home office.  I had one server acting as router on the DSL line and another on the Cable line.

The config went like this:

Server1:
  NIC1 (LAN)
    IP: 192.168.1.10
    GW: <blank>
  NIC 2 (DSL1)
    IP: 274.12.545.13 (non-sensical IP for example purposes; you would use a real, PUBLIC IP)
    GW: 274.12.545.1 (ISP provided gateway)

Server2:
  NIC1 (LAN)
    IP: 192.168.1.11
    GW: <blank>
  NIC 2 (DSL2)
    IP: 264.32.147.248 (non-sensical IP for example purposes; you would use a real, PUBLIC IP)
    GW: 264.32.147.254 (ISP provided gateway)

Now, the servers can talk to each other on the 192.168.1.x LAN but the internet access for one server is via DSL1 and the other its via DSL2.

So you can have Server 1 provide the same hosted files for both IPs, configuring the second server to access/"publish" those files on it via the local network.
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