Did you managed to resolve the issue?

I can try to help you with the MikroTik Device.

 

Eliezer

 

----

 <http://ngtech.co.il/lmgtfy/> Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: [email protected]



 

From: AusNOG [mailto:[email protected]] On Behalf Of Cameron 
Murray
Sent: Thursday, August 10, 2017 02:21
To: [email protected]
Subject: [AusNOG] Fwd: Mikrotik > Telstra DA MRV Issue

 

Guys,

 

Been fighting a weird issue for the past week with a AAPT resold Telstra 
Wholesale DA service.

 

The service was completed last week and successfully tests by both carriers 
however with the customers Mikrotik device the service does not function 
correctly with only RX data within a tagged vlan 1024 (This is an untagged 
service and the AGG vlan is not 1024).

 

When we perform a data capture from within the Mikrotik we can see ARP and ECHO 
responses being performed from the CPE to the AGG Router that are being sent 
out untagged.

 

The show stopper here is if we plug a laptop directly into the MRV the service 
works correctly.

 

We have changed Mikrotik Routers and also tried different series devices, 
interface speeds and different MAC address ranges. We've provisioned hundreds 
of these and this is the first that I'm stumped on.

 

This is a difficult issue to explain and even harder when both AAPT and Telstra 
saying no fault found.

 

Reference Images:

 

https://www.dropbox.com/s/nzwi7kad24cpims/ARP%20Request%20CPE-VLAN1024.PNG?dl=0

 

https://www.dropbox.com/s/kv1xs1ykh11iym8/Packet%20Capture%20Wan%20Int.PNG?dl=0

 

https://www.dropbox.com/s/3cri7r5jdkh94qf/wireshark-vlan-1024.PNG?dl=0

 

 

My Hope is someone here has seen this issue before and give me a sanity check

 

TIA

 

Cameron

 

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