(Plz read)How to use two internet connections in Linux

[sosaited]

Hi.

I've been trying to search a solution to this problem for many weeks now. I've posted on forums, and searched on google many times, but still can't find a solution.

Both my connections are dialup (configured via wvdial), and use two different USB modems (ttyACM0, ttyUSB0).
When I connect both of them, I can't browse anything.

In windows, I used the trial of Wingate software to setup a local http proxy on 127.0.0.1 and used both my dialup connections as "gateways". I got combined speed of both the connections successfully in multi threaded downloads.

So can anyone tell how can I do the same in Linux. Any proxy software similar to Wingate? (which will allow me to use two connections as gateways). Or any other solution ? (with iproute2 or something?).

I really wish I'll find a solution from you guys.

Thanks in advance.

[Kernel_Killer]

What you are wanting to do is called "shotgunning" your lines. Here's a site that explains it all, and several links with how-to's, and various other articles explaining how to do, and how to understand it.

[redhead]

Perhaps this will help you: http://blog.taragana.com/index.php/a...ions-on-linux/

Or this might: http://www.cyberciti.biz/tips/linux-...interface.html

[sosaited]

Thank you guys for taking time and responding, but unfortunate for me, the links/solutions you mentioned are not applicable in my proble.

Two of them mention bonding ethernet devices (NIC cards) and load balancing them. (While I have USB wireless modems).

The other (56k.com) mentions something which I don't fully understand, but I am pretty sure it is talking something about Phone lines, while my both connections are wireless dialup connections: One is GPRS/EDGE I use through my cell phone, the other is a CDMA phone supporting Internet.

I hope I've made my situation clear now, sorry for not explaining in the first post.

Hoping to get some help.

Thanks

[redhead]

In linux it dosn't matter wether it's NIC or PPP connection, once it's connected, it's ultimately the very same inteface according to the bonding module.

Here is a walk through for Ubunto 6.10: http://www.howtoforge.com/network_bonding_ubuntu_6.10
Here is one for Debian: http://www.howtoforge.com/nic_bonding
Here is one for CentOS: http://www.howtoforge.com/network_card_bonding_centos

• You have some interfaces:
  • ppp0/eth0/ath0/ra0/etc.
  • ppp1/eth1/ath1/ra1/etc.
• You tell bonding module to create an interface ready to consist of your orriginal interfaces
  • alias bond0 bonding
  • options bond0 mode=0 miimon=100 downdelay=200 updelay=200
• You create this new interface consisting of your already created connections
  • ifenslave bond0 [ppp0/eth0/ath0/ra0/etc.] [ppp1/eth1/ath1/ra1/etc.]
• You set this new interface to be the one to contact the world through

  • iface bond0 inet static
       address 192.168.0.120
       netmask 255.255.255.0
       network 192.168.0.0
       broadcast 192.168.0.255
       gateway 192.168.0.1
       hwaddress ether 00:03:B3:48:50:2C

The trigger is in fact the ifenslave bond0 eth0 eth1 and declaring default gateway to be within the bond0 ip-range.