loadbalance router

[J.Witvliet at mindef.nl]

Connecting two internet via multiple routes (eg providers) is explained with examples in LARTC.


Verstuurd vanaf mijn iPhone

Op 12 aug. 2015 om 10:35 heeft Crispin Wellington <crispinw at signiq.com<mailto:crispinw at signiq.com>> het volgende geschreven:

What does 'netstat -nr' show you?

Crispin

On Wed, Aug 12, 2015 at 4:32 PM, tux john <atux at null.net<mailto:atux at null.net>> wrote:
Thanks for the quick response.
Both links are up. in both of the DSL ROUTERs i have a pc attached to them to check their conectivity.
The sysctl net.ipv4.ip_forward returns 1.
Do i have to do anything for the NAT?

Sent: Wednesday, August 12, 2015 at 11:11 AM
From: "Petter Adsen" <petter at synth.no<mailto:petter at synth.no>>
To: ubuntu-users at lists.ubuntu.com<mailto:ubuntu-users at lists.ubuntu.com>
Subject: Re: loadbalance router
On Wed, 12 Aug 2015 10:01:45 +0200
"tux john" <atux at null.net<mailto:atux at null.net>> wrote:

> hello everyone. i do have a pc with 3 NICs that i do run ubuntu server 12.04. i do have 2 DSL connections and i would like to make use of both of them per session. i have seen some solutions but i failed to make them work.
> my network is:
> DSL_1: 192.168.1.1/24<http://192.168.1.1/24> and it is attached to eth1 of the server
> DSL_2: 192.168.2.1/24<http://192.168.2.1/24> and it is attached to eth2 of the server
> LAN:192.168.0.0/24<http://192.168.0.0/24> and it is attached to eth0 of the server
> /etc/network/interfaces
> auto lo
> iface lo inet loopback
> auto eth0
> iface eth0 inet static
> address 192.168.0.1
> netmask 255.255.255.0
> #WAN1
> auto eth1
> iface eth1 inet static
> address 192.168.1.63
> netmask 255.255.255.0
> gateway 192.168.1.1
> dns-nameservers 8.8.8.8
> #WAN2
> auto eth2
> iface eth2 inet static
> address 192.168.2.63
> netmask 255.255.255.0
> gateway 192.168.2.1
> dns-nameservers 8.8.8.8
>
> I have seen the following 2 links:
> -lstein.github.io/Net-ISP-Balance<http://lstein.github.io/Net-ISP-Balance>
> -wiki.ubuntuusers.de/Multiple_Uplink_Routing<http://wiki.ubuntuusers.de/Multiple_Uplink_Routing> needs google translate
>
> in both cases i could ping to the Internet only from DSL_1 and not from the other DSL_2.

Are you sure the link is up?

> Also if a pc is attached to the eth0 it cannot access anything on the
> Internet.

Try 'sysctl net.ipv4.ip_forward'. If it returns 0 then IP forwarding is
disabled, as it is by default. 'sudo sysctl -w net.ipv4.ip_forward=1'
will enable it. Add 'net.ipv4.ip_forward = 1' to /etc/sysctl.conf to
enable it after next reboot.

Petter

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