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MSM460. Clients on different VSC can't communicate. Firmware 6.0.1.

 
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selel123
Occasional Contributor

MSM460. Clients on different VSC can't communicate. Firmware 6.0.1.

MSM460

Firmware 6.0.1
Autonomous mode

 

There're two VSC. For each of them:
-- Radio 1 (5GHz)
-- Broadcast filtering - Unchecked
-- Allow traffic between - all
-- Priority mechanism - Disabled
-- Egress VLAN - default (no VLAN)
-- Wireless security filters - Unchecked

 

All clients on both VSC are on the same subnet (192.168.0.0/255.255.255.0).

 

The problem is client from one VSC can't communicate with client on another VSC (no ping, no any other protocol).

Diagnosys points:
-- Clients on the same VSC can communicate with each other without any problem. This communication obviously occures inside AP, because no any ARP packet goes outside of AP (tcpdump shows).
-- When client on VSC_1 tries to ping client on VSC_2, broadcast ARP request goes out of AP, but no answer.
-- When client on VSC_1 tries to ping client on VSC in another egress VLAN (VSC_3), ping is OK.

 

So, is this behavior normal or it's a bug ?

 

From my point of view, When client on VSC_1 tries to ping client on VSC_2, AP must manage such requests inside itself without asking LAN (Autonomous mode).