Traffic Shaping issue

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Unexus
Here to help

Traffic Shaping issue

MX67

WAN1 on ISP1

WAN2 on ISP2

LAN1 on 192.168.1.0/24

LAN2 on 192.168.2.0/24

 

Load Balancing OFF

 

Pref WAN1

 

Flow Pref Rule:

 

ANY 192.168.2.0/24 to ANY via WAN2

 

When I browse to MyIP.com it shows my ISP2 WAN IP > OK

When I do a tracert on my laptop only on LAN2 I see

 

hop1: 192.168.2.1 (local GW)

hop2: ISP1 GW

 

Same with ping from LAN2 to google.nl:

When I do a packet capture on LAN I see the ping coming from my local devie

When I do a packet capture on WAN2  i don't seen anything > expected to the see the pings

WHen I do a packte captur on WAN1 i see the ping's going and also the replies > expected not to see them here.

 

I have no static routes

 

Any idea why some trafic still goes via WAN1 instead of WAN2? 

1 Accepted Solution
RaphaelL
Kind of a big deal
Kind of a big deal

Hi ,

 

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/SD-WAN_and_Traffic_Shaping

Note: ICMP traffic is not subject to traffic shaping rules. As a result, Flow Preference will have no impact on ICMP traffic

 

Traceroute and ping are ICMP based so your flow preference rules will be ignored. 

 

 

View solution in original post

4 Replies 4
RaphaelL
Kind of a big deal
Kind of a big deal

Hi ,

 

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/SD-WAN_and_Traffic_Shaping

Note: ICMP traffic is not subject to traffic shaping rules. As a result, Flow Preference will have no impact on ICMP traffic

 

Traceroute and ping are ICMP based so your flow preference rules will be ignored. 

 

 

Dunky
Head in the Cloud

Well I didn't know that, thanks for that nugget @RaphaelL 

alemabrahao
Kind of a big deal
Kind of a big deal

What @RaphaelL  said is correct.

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
Red_Eyed_Llama
Comes here often

Agree with @RaphaelL here.

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