Howto pass eMule/eDonkey traffic through SME

Port forwarding is different on SE 5.5, SME 5.6 and SME 6.0. On SME 5.5 you can configure masquerade whereas on SME 5.6 you need to install a port forwarding contribution. On SME 6.0 port forwarding is already in stalled and you only need to configure. Common for all is the fact that you need to open up for incoming requests on certain ports.
eDonkey and eMule uses three ports:

Protocol	Port	Description
TCP	4661	To connect with a server
TCP	4662	To connect with other clients
UDP	4665	To communicate with servers other than the one you are connected to.
TCP	4663	Is also used with the command line client when it is configured to allow remote connections. This is the case when using a Graphical Interface (such as the Java Interface) with the client.

SME 5.5
Use port forwarding to forward traffic from the relevant TCP/UDP ports from the SME box to a PC inside your own network.
[root@e-smith ]# ipmasqadm portfw -a -P tcp -L SME_IP  4661 -R PC_IP 4661
[root@e-smith ]# ipmasqadm portfw -a -P tcp -L SME_IP  4662 -R PC_IP 4662
[root@e-smith ]# ipmasqadm portfw -a -P tcp -L SME_IP  4663 -R PC_IP 4663
[root@e-smith ]# ipmasqadm portfw -a -P udp -L SME_IP  4665 -R PC_IP 4665
List your port forwardings to make sure that your entered the information correctly. 
[root@e-smith ]# ipmasqadm portfw -l
SME 5.6
On 5.6 you need to install port forwarding, since it is not part of the standard installation.
[root@e-smith ]# rpm -Uvh http://sme.swerts-knudsen.dk/downloads/e-smith-packetfilter-1.13.0-04.noarch.rpm
[root@e-smith ]# rpm -Uvh http://sme.swerts-knudsen.dk/downloads/e-smith-portforwarding-0.1.0-20.noarch.rpm
[root@e-smith ]# /sbin/e-smith/signal-event post-upgrade
[root@e-smith ]# /sbin/e-smith/signal-event reboot
After the reboot you can use the server-manager to configure your port forwarding (Configuration -> Port Forwarding).
For eMule you need the following (as a minimum):

Protocol	Source Port	Destination Host IP Address	Destination Port	Action
TCP	4662	192.168.x.x	4662	Remove
UDP	4662	192.168.x.x	4662	Remove

where X is the last part of the local IP address of the PC with the eMule client.
You should now have a high ID in eDonkey/eMule. Note that this setup only allow for a SINGLE eDonkey/eMule client on your network!