First find your ISP’s speed in your contract or on the ISP’s webpage.

The values for speed are usually given in kilo Bits per second [kb/s] but the values to be entered in eMule are in kilo Bytes per second [kB/s]
To convert to kilo Bytes simply divide the kilo Bits value by 8

Example:
Maximum Downstream: 768kb/s ÷ 8 = 96 kB/s
Maximum Upstream: 128kb/s ÷ 8 = 16 kB/s

The Wizards has most of the common connection types preconfigured. Use it to find the correct settings for your line.

Capacities
o Download
This value equals the maximum downstream bandwidth. In the example above it would be 96.

o Upload
The maximum upstream. In the example it would be 16.

Note:
The Capacities are important for the connection management in eMule. Check for correct values.

Limits
o Download
This is the maximum download speed in kB/s eMule is allowed. It is recommended to set it to unlimited by removing the check mark.

o Upload
This is a very important setting. It denotes the maximum upload you give to the network. The recommended setting is not set it higher than ~75% of your Upload Capacity. Or try Upload Speed Sense - see below.

Aspects to consider:
Setting the Limits to unlimited using Upload Speed Sense
When activating Upload Speed Sense in Preferences -> Extended Settings and removing the check on Upload Limit eMule will use all available upload for best performance. Automatic monitoring of the ping times and upload adjustment will ensure smooth surfing or online gaming while maximizing download by credit collecting.

Setting Upload limit too high
Every download needs some spare upload bandwidth to make requests, acknowledge packages etc. So if you set this limit to high the upload will slow your download as no upload bandwidth is available to make these requests.

Setting Upload limit too low
eMule features a credit system based on how much you give to the network. A lower upload means fewer credits and a longer wait time in queues.

Client port
o TCP
eMule uses 4662 as default port for downloading data from another client. It is important that this port may be contacted from outside, this means it must not be blocked by a firewall or dropped in a router because of a missing forwarding rule. In this case you would have a low ID. Changing this port may be necessary as some ISP seems to throttle the speed on the default eMule ports. If the port is changed this has to be adopted in any router/firewall rules also.

o UDP
The UDP port is the connection port for the Kademlia network and also handles many features like eMule's extended protocol. Using inter client UDP reduces the connection overhead and also lessens load on the servers.
It is necessary that this ports is open and forwarded just like the TCP port or Kademlia will receive the status firewalled, which is the same as low ID on a server. If it is not possible to open this port, it should be deactivated.

o Open these ports on the internal WinXP firewall
If the internal Windows XP firewall is activated this button will automatically open the entered ports to allow unblocked communication in eMule. Only the UDP and TCP port are opened and it is recommended to use this function together with the Preferences -> Extended Settings -> Open/close ports on Win XP firewall when starting/exiting eMule. This offers best protection. This feature only works for Windows XP (w/o SP) and XP SP1.

o Test Ports
This button will open a web page in the browser which runs a script to verify that the entered ports are opened and will give a high ID. If the page displays an error, the settings for router and/or firewall have to be corrected.

Connection Limit
o Max Connections
This is the maximum allowed number of TCP/IP and UDP connections.
Connections are only opened if there is data transfer in progress, for search and queue requests or Client to Client Source Exchange.
Altering this value is normally not necessary, except on Windows 98/ME, then don't set this value any higher than 100.

Note:
(Too many connections) in an expanded download means, that the limit of new connections has already been reached. These sources are "on queue" and will be processed as soon as new connections are opened.

Max Sources Per File
o Hard Limit
Hard Limit is the maximum number of sources allowed for a file. If this limit is reached eMule stops accepting sources for this file.

Network
eMule features two different networks. One is a server based network following the traditional eD2k system The other one works independent of servers and uses a concept known as Kademlia. See the Network Guide in this help for a more detailed description.
The checkboxes allow to choose to which network(s) eMule connects when the Connect button is pressed.

Autoconnect on startup
This will tell eMule to establish a server and/or Kademlia connection right after start up.

Reconnect On Loss
If the network connection is lost, eMule will automatically try to establish a new one. Recommended is checked.

Show Overhead Bandwidth
This option will display the up- and download overhead in the eMule status bar. They are the values in parenthesis ( ) next to the current up- and download speed. This overhead calculated from the amount of data needed to manage source asking, to open connections and to control any other form of communication between clients. This bandwidth is lost for up- and downloading.

Important:
If the sum of your current upload and overhead is near your upload limit, eMule opens too many connections or has to manage too many sources. In this case you have to lower your Max Connections and/or your Max Sources per File or you'll suffer from bad down- and uploads.

Note:
The number of clients in your queue do not cause any additional traffic and have no effect on overhead.

Applies to version: .44a+
Last Update: 2004-09-11, Monk
12.09.2004 7:31