PPPOE Port

Greetings all
i have a PPPOE customer who is unable wo open facebook poker site which is on port 9339
does anyone knows how can i allow this port for PPPOE user knowing that IP users don’t encouter this problem for i have opened this port for the IP users but am unable to do so for the PPPOE users

Only thing how this might be related to PPPoE is Maximum Segment Size (MSS) for TCp connections.

You need to enable change-mss rules in the pppoe-server profiles.