Wireless Point to Point Bridge / Tagged VLANS
Posted on 2014-02-06
I have a Customer who has contracted out some Network (Switches , Routers ) Work to a 3rd Party Vendor
They will utilize a Motorola Wireless PTP System we installed a few years ago.
3rd Party vendor has reached out to us and stated the PTP System is not passing Tagged Vlans.
I setup a test on a link 3rd party says fails to function
Switch A - IP: 192.168.0.240 (MGMT VLAN1)
Switch B - IP: 192.168.0.241 (MGMT VLAN1)
Laptop 1 - IP: 192.168.0.200
Laptop 2 - IP: 192.168.0.201
Router1 - IP: 192.168.0.254
Switch Configs (Same on Both)
Port 1 (Access) Untagged VLAN1 (Default), Forbid VLAN2 & VLAN3
Port 2 (Access) Untagged VLAN2 , Forbid VLAN1 & VLAN3
Port 3 (Access) Untagged VLAN3 , Forbid VLAN1 & VLAN2
Port 8 (Trunk) Untag VLAN1 , TAG VLAN2 , TAG VLAN3
PTP Equipment plugged into Port 8 on Both Switches
Router1 - Switch1-Port2
Laptop1 - Switch1-Port1
Laptop2 - Switch2-Port2
With This scenario , Laptop 1 cannot ping Router1 and Laptop2 , as expected
Laptop 1 can reach Mgmt/ Ping on Switch 1 and Switch 2
SO it appears that I am able to pass Tagged and Untagge VLAN across PTP
I submitted the results to 3rd Party Net Vendor ...
They knocked it down and said that unless I use different Subnet for each VLAN that it didnt prove anything ...
I guess my question is .. I didn't think VLAN would care what subnet is in use .. or am I wrong ?