topic Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2 in Cloud Networking Platform

Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 15:38:24 GMT

I have a concern regarding mx100. we have 2 wan interface. my primary link is wan1. Both wan1 and wan2 are working and tested then each link have different isp provider.

Now here's my concern, I was told that if i want to send a certian ip or subnet to have internet traffic go out to wan2 i just need to set it up on the Flow References -> Internet Traffic. So I did, but unfortunately the internet traffic still goes out to wan1 even if when I check public ip and speedtest.net its showing the wan2 details. The Internet traffic only go out to wan2 when i change the primary link to wan2.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 15:42:50 GMT

If you are testing with ICMP it's normal, check the note:

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

Raphael_L — Thu, 31 Mar 2022 15:45:47 GMT

Have you tried to reboot the MX ? There is probably a flow table that won't get updated until the flow times out / expires.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 15:47:48 GMT

@Raphletourn , I think that is not the case. check my answer above.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 15:49:44 GMT

Hi Alemabrahao. Im not testing icmp. I'm actually sending a certain ip/subnet using Flow References -> Internet Traffic to wan2. Then after saving my changes still my internet traffic goes outside wan1 even if i do a speedtest the internet speed reflect on wan1.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 15:50:53 GMT

Hi Raphael, Yes already did reboot the MX. still same issue. It only change when i set the primary link to wan2.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

Raphael_L — Thu, 31 Mar 2022 15:51:39 GMT

I had seen your answer. OP didn't mention anything about ICMP...

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 15:52:25 GMT

I'm confused, because you sad "even if when I check public ip and speedtest.net its showing the wan2 details"

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 15:57:47 GMT

On speed test which IP is shown to you from wan1 or wan 2? Check It:

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Load_Balancing_and_Flow_Preferences#Load_Balancing

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 15:58:15 GMT

Oh sorry for the confusion. So if i use Flow References -> Internet Traffic then sent a certain ip/subnet on wan2 then check using whatsmyip and do a speedtest it will show my wan2 public ip but the internet speed still reflect on wan1.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 16:00:33 GMT

My load balancing is disable. I dont need the traffic to be spread across both uplink.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 16:01:05 GMT

Speed test is based on ICMP 🙂

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 16:04:50 GMT

So how do i know or how do i check if my my changes on Flow References -> Internet Traffic is successful if speedtest, traceroute, packet capture is still showing my wan1 ?

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

Raphael_L — Thu, 31 Mar 2022 16:05:27 GMT

No.....

It's TCP based

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 16:06:38 GMT

No, ICMP, speed test servers with ICMP. 🙂

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 16:07:46 GMT

If the speed test is showing the WAN2 IP It's ok, all those tests are based on ICMP.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 16:08:31 GMT

Testing to the same server. Speedtest automatically selects a server to test to based on ping, but you can also select a server to test to.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

Raphael_L — Thu, 31 Mar 2022 16:08:43 GMT

I get what you are saying.

The selection is based on ICMP yes. But the actual test is done on TCP.

That being said. Since the selection is based on ICMP and ICMP is not subjected to trafic shaping / flow preference , the server will always be selected on WAN1.

A better test to troubleshoot your flow selection would be to use another website / service. CNN , something like that.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

aleabrahao — Thu, 31 Mar 2022 16:11:53 GMT

Nope, I'm rigth.

Re: Setup 2 wan interface but when using Flow References no internet traffic coming out on wan2

GelC — Thu, 31 Mar 2022 16:13:16 GMT

I think its not ok if I'll tell a client that i already sent his ip to wan2 but the result is still showing of a wan1 speed result.