eMule from Low to High ID Configuration
A high ID rank in eMule (symbolised with green arrows at eMule’s status bar) means that the port chosen in Options -> Connections is open and freely accessible, whereas a low ID (symbolised with yellow arrows) means that this port is blocked or cannot be reached.
Low ID can be caused by firewalls, routers or proxy servers. Having a low ID does not mean that no upload or download is possible, but it has several disadvantages:
1) No IP is known of the machine eMule is running on, therefore all requests, like queue or connection requests to this client, have to be routed over the server the low ID client is connected to. This routing causes considerable amount of CPU load on the server, thus reducing the maximum number of users the server can cope with. Lugdunum’s servers limit the number of low ID users, or even ban all of them.
2) Two clients with low ID cannot connect to each other, as it is not possible to route messages over two different servers. This will lead to less sources for the downloads. 3) On busy servers it may well happen that the messages get lost and eMule misses important information about queue progression or download requests. This may lead to fewer credits and worse downloads.