[Resolved] Load balancing multiple same subnet links


#1

I have a setup where I need to load balance 3 incoming connections from one ISP and the gateway is the same.
I cannot figure out or find any examples how to do this on vyatta/vyos
I have done load balancing before but then with different ISP’s
Can anyone point me in the right direction?

show interfaces
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface        IP Address                        S/L  Description
---------        ----------                        ---  -----------
eth0             192.168.2.1/24                u/u  INSIDE
eth1             10.10.10.122/25               u/u  OUTSIDE1
eth2             10.10.10.123/25               u/u  OUTSIDE2
eth3             10.10.10.124/25               u/u  OUTSIDE3
lo                127.0.0.1/8                      u/u
                   ::1/128
show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
       I - ISIS, B - BGP, > - selected route, * - FIB route

S>* 0.0.0.0/0 [1/0] via 10.10.10.126, eth1
C * 10.10.10.0/25 is directly connected, eth3
C * 10.10.10.0/25 is directly connected, eth2
C>* 10.10.10.0/25 is directly connected, eth1
C>* 127.0.0.0/8 is directly connected, lo
C>* 192.168.2.0/24 is directly connected, eth0

#2

I did not get this to work… even tried pfSense

But my ISP got me 3 different subnets/gateways


#3

I don’t know if you ever looked at the Vyatta HA 6.5R guide on load-balancing, but I think a rule based load-balancing would have worked.

Example:

First, you would need to setup your static routes for your targets in the health check.

set protocols static route 8.8.8.8/32 next-hop {ip of your gw} set protocols static route 8.8.4.4/32 next-hop {ip of your gw} set protocols static route 75.75.75.75/32 next-hop {ip of your gw}

Next, you need to create your health check parameters for your interfaces.

[code]set load-balancing wan interface-health eth0 failure-count ‘4’
set load-balancing wan interface-health eth0 nexthop ‘your gateway ip’
set load-balancing wan interface-health eth0 success-count ‘1’
set load-balancing wan interface-health eth0 test 10 resp-time ‘5’
set load-balancing wan interface-health eth0 test 10 target ‘8.8.8.8’
set load-balancing wan interface-health eth0 test 10 ttl-limit ‘1’
set load-balancing wan interface-health eth0 test 10 type ‘ping’

set load-balancing wan interface-health eth0 test 20 resp-time ‘5’
set load-balancing wan interface-health eth0 test 20 target ‘8.8.8.8’
set load-balancing wan interface-health eth0 test 20 ttl-limit ‘1’
set load-balancing wan interface-health eth0 test 20 type ‘ping’
set load-balancing wan interface-health eth0 failure-count ‘4’

set load-balancing wan interface-health eth1 failure-count ‘5’
set load-balancing wan interface-health eth1 nexthop ‘your gateway ip’
set load-balancing wan interface-health eth1 success-count ‘1’
set load-balancing wan interface-health eth1 test 10 resp-time ‘5’
set load-balancing wan interface-health eth1 test 10 target ‘8.8.4.4’
set load-balancing wan interface-health eth1 test 10 ttl-limit ‘1’
set load-balancing wan interface-health eth1 test 10 type ‘ping’

set load-balancing wan interface-health eth1 test 20 resp-time ‘5’
set load-balancing wan interface-health eth1 test 20 target ‘8.8.4.4’
set load-balancing wan interface-health eth1 test 20 ttl-limit ‘1’
set load-balancing wan interface-health eth1 test 20 type ‘ping’

set load-balancing wan interface-health eth2 failure-count ‘3’
set load-balancing wan interface-health eth2 nexthop ‘your gateway ip’
set load-balancing wan interface-health eth2 success-count ‘1’
set load-balancing wan interface-health eth2 test 10 resp-time ‘5’
set load-balancing wan interface-health eth2 test 10 target ‘75.75.75.75’
set load-balancing wan interface-health eth2 test 10 ttl-limit ‘1’
set load-balancing wan interface-health eth2 test 10 type ‘ping’

set load-balancing wan interface-health eth2 test 20 resp-time ‘5’
set load-balancing wan interface-health eth2 test 20 target ‘75.75.75.75’
set load-balancing wan interface-health eth2 test 20 ttl-limit ‘1’
set load-balancing wan interface-health eth2 test 20 type ‘ping’[/code]

Once that is done, you can go ahead and let the system know that you are going to use all three interfaces for outbound traffic and that they should share the load and be treated equally.

set load-balancing wan rule 10 inbound-interface eth3 set load-balancing wan rule 10 interface eth0 set load-balancing wan rule 10 interface eth1 set load-balancing wan rule 10 interface eth2

The above probably would have worked. I mean, it was lab tested and I could see all interfaces active with three internal hosts pinging different sites. (Some bugs were found, where at first 1 of 3 interfaces would not be pingable from my outside network. But a reboot would fix that problem.) I know that this is a bit too late, but if you had to acquire or rent extra hardware from your ISP, then you could give this a try and get rid of that overhead expense.


#4

Hello,
I am a new user of the forum and a noob on Vyos, I got some networking knowledge and I would like to learn more on Vyos.
Can someone explain what the above code does?
I got the general meaning, Vyos got to ping 3 IPs to see if they are reachable, but then I am lost, any kind soul to help me ?
Thanks


#5

No one to help me ?