[Feauture Request] Adding support for port-based limiter

[xzycn]

Now, we can create a limiter scope for IP or CIDR, can we support port?

[xzycn]

Yes, I have found we can treat a service(addr field) and a limiter as a port-based limiter.

Normally, we see the model :

such as Port Forwarding.

another model:

such as transparent proxy (redirect in linux).

How do I use a port-based limiter when everyone connect to one service?

[ginuerzh]

What kind of limiter, traffic limiter, rate limiter, or connection limiter?

[xzycn]

@ginuerzh traffic limiter.

[ginuerzh]

Ports can not be used to distinguish users, the client port is dynamic.

[xzycn]

@ginuerzh I mean the destination port(get from getOriginalDstAddr) instead of client port :)