Port forwarding is a 1:1, fixed port mapping from a external port to a private IP.
Virtual servers allow mapping a external port to a host behind the router which is listening on a different port. This allows you to have multiple internal hosts listening on the same port and still be reachable from the Internet via different external ports.Code:Internet <-> 200.1.2.123:12345 (WAN IP) <-> 192.168.1.8:12345 (LAN IP)
If you create a virtual server where the external and internal ports are the same, there is essentially no difference with port forwarding.Code:<-> 200.1.2.123:12345 (WAN IP) <-> 192.168.1.8:80 (LAN IP) Internet <-> 200.1.2.123:12346 (WAN IP) <-> 192.168.1.9:80 (LAN IP) <-> 200.1.2.123:12347 (WAN IP) <-> 192.168.1.10:80 (LAN IP)
QoS means "quality of service" and is a concept in telecommunications, where an attempt to maintain an base, reasonable level of quality and reliability for customer traffic. QoS may use bandwidth management techniques to achieve these goals. They're near-synonyms in that regard.Similar question: what about difference between QoS and Bandwidth Management? Are they the same? Can trafic shaping be done in either of these?
From what I can tell, bandwidth management allows to restrict ingress and egress speeds.
Care to show a screenshot of these settings in your router?I'm trying to do traffic shaping in my router but I guess I can't.
Cheaper ones may only allow basic rate limiting and "guaranteeing" of traffic on certain ports and that's it.
If you haven't done so already, I would check if your router is compatible with DD-WRT, which seems to be the bomb.
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