QinQ VLAN's Help needed

[JBLTelecom]

@sindy

Switch A has its bridge vlan filtering set to yes

Sorry, instead of “switch1” it should have read “Switch@Station”

Configuration is done on the switch at station but ping wasn’t successful.

@sindy

OK, so that localizes the issue somewhere between Router@Station and Switch@Station. Since I’ve mislead you regarding where to look, you probably haven’t enabled vlan-filtering on Switch@Station yet? If that’s the case, can you enable it and repeat the previous step (keeping 20.30.0.218 only on the customer device) and if it fails, repeat this one (putting the address up on Switch@Station)? If that also fails, sniff at Switch@Station to see whether the request comes in from Router@Station and how is it encapsulated.

Sniffing was done on switch@Station and there was no request from Router@Station. No mac trace to router@Station as shown below with sniff.

@sindy

it is correct that C-VLAN 169 is served by Router A but connected to Sector B at the Station end?

The C-Vlans can be tagged on any AP or port on the switch at Station depending on the AP client is connected.

@sindy

OK, let me rephrase it - is the client device with address 20.30.0.218 indeed connected via sector B?

Yes the client is connected via sector B on port 2 on the switch@Station

@sindy

your configuration suggests that you spend 4 public addresses to provide a single one to a customer, is that indeed the case?

No Doing CGNAT on each router.

@sindy

So what makes you use the (Microsoft!) public addresses as the /30 ones?

We are just using that ip as our internal IP, since it won’t be available on the internet via our end there won’t be any problem or?