Hi,
I am still not able to do file transfer beweent internal user and external user.
I capture the packet data in external user side when sending file from internal to external.
I find the the internal local ip address (192.168.126.1) appears in the external side which means
OCS doesn't do network address translation when do file transfer.
The follwoing highlight text is the data packet I capture in external
16 9.032170 192.9.200.21 192.168.126.1 TCP 4354 > 6891 [SYN] Seq=0 Len=0 MSS=1460
192.9.200.21 is the local ip address of external comuter.
192.168.126.1 is the local ip address of internal computer.
maybe my bad configuration of OCS caused the problem. but A/V works fine.
Reagards,
Bo