Repeat after me: You don't need PPP.
You do need a working DHCP server -- in order to give you routing information. However, the player application doesn't save the DNS settings.
You probably also need the following:
/sbin/ifconfig
/bin/ping
/etc/services
/etc/protocols
/etc/nsswitch.conf
/lib/libnss_compat-2.1.2.so
/lib/libnss_db-2.1.2.so
/lib/libnss_files.so.2
/etc/host.conf
/etc/resolv.conf
/lib/libnss_dns*
/lib/libdb*
/lib/libresolv*
You can find them
here.
Roger - not necessarily speaking for empeg