https://kb.sos-berlin.com/display/PKB/YADE+Parameter+Reference+-+SOCKS4Proxy
Proxies can make use of different protocols, a SOCKS4Proxy - as the name suggests - will use the SOCKS4 protocol
SOCKS4 proxies do not support authentication.
<SOCKS4Proxy> <BasicConnection>{1,1}</BasicConnection> </SOCKS4Proxy>