Hello list, I'm trying to proxy ftp to an internal server on a firewall. It works quite well on the first connect, but when a second client tries to connect, the server answers with: 421 Service not available, remote server has closed connection Login failed. Any Ideas what is wrong ? Best Regards, Andreas Wassatsch Logfile: first client (ok) Mar 15 13:07:36 fwall ftp-child[23706]: USER-INF connect from 62.96.xxx.x Mar 15 13:07:42 fwall ftp-child[23706]: USER-INF 'USER ard' from 62.96.xxx.x Mar 15 13:07:42 fwall ftp-child[23706]: USER-INF reading data for 'ard' from cfg-file Mar 15 13:07:51 fwall ftp-child[23706]: USER-INF 'PASS XXXX' from 62.96.192.2 Mar 15 13:07:51 fwall ftp-child[23706]: USER-INF 'PWD' from 62.96.xxx.x Mar 15 13:07:51 fwall ftp-child[23706]: USER-INF 'SYST' from 62.96.xxx.x Logfile: second client Mar 15 13:08:00 fwall ftp-child[23723]: USER-INF connect from 195.143.xxx.xx Mar 15 13:08:06 fwall ftp-child[23723]: USER-INF 'USER ard' from 195.143.xxx.xx Mar 15 13:08:06 fwall ftp-child[23723]: USER-INF reading data for 'ard' from cfg-file Mar 15 13:08:06 fwall ftp-child[23723]: TECH-ERR can't connect 10.yy.yy.101:21 for 195.143.xxx.xx (errno=99 [Cannot assign requested address]) ftp-proxy.conf [-Global-] ActiveMinDataPort 40900 ActiveMaxDataPort 40999 DestinationAddress 10.yy.yy.101 DestinationMinPort 42900 DestinationMaxPort 42999 Listen 62.96.xxx.xxx PortResetsPasv yes ServerType standalone MaxClients 64 MaxClientsString "Service nicht verfuegbar" LogDestination daemon -- Andreas Wassatsch CAT Systems AG Dipl.-Ing. Robert-Bosch-Straße 3-5 D-68723 Schwetzingen using Linux since 0.99pl10 Fon 06202/857-303 Fax -100