eWON General Reference Guide - Esco Drives & Automation

General Reference GuideeWON ConfigurationAll these parameters are in the comcfg.txt file.Control(param name in comcfg.txt file)Proxy Configuration Enabled(ProxyEnabled)Idle connection timeout(ProxyIdleTO)Maximum connectionsper proxy enrty(ProxyMaxSock)Proxy External Interface (EXT)(ProxyExtItf)Control(param name in comcfg.txt file)Protocol(ProxyProto#)Direction(ProxySide#)Incoming port(ProxyPort#)Destination port(ProxySrvPort#)Destination IP address(ProxySrvIpAddr#)DescriptionEnables or disables the proxy feature. The proxy operation can be switched on or off at anytime during the eWON operation without reboot.Any change in the configuration is applied as soon as the configuration is changed.Each time a client opens a connection to the proxy, the connection is kept opened until theclient explicitly closes it or until this timeout is elapsed without data being transferred on thesocket.This is required if a client is for example switched off while the connection is active, theconnection will be dropped and the memory recovered after the timeout is elapsed.For each proxy entry, a maximum number of connections can be opened at a given time on aproxy port. This parameter defines the maximum.Select the interface (WAN, PPP incoming or VPN) where the proxy rules are applied.Table 36: Proxy Global parameters tableDescriptionThis is the type of protocol that the eWON will proxy to the given server. These protocols arehandled differently and must be specified in the configuration.Available protocols are :• Disabled (0)• UDP (1)• TCP (2)• FTP (3)Although FTP is TCP, it must be specified. The FTP proxy will work for passive and activeconnections.REM: If ProxyProto is set to “disabled”, then the full proxy entry will be disabled, regardless ofthe other entry parameter's values.The eWON's proxy is completely symetric, it can work in both directions.Usualy the user will want to proxy from the EXT to the LAN in order to access a device on theLAN that has not the eWON as gateway.But a device can also connect to a server on the EXT without having the eWON as gateway.This is true as long as the server has a fixed IP address that can be entered in the Proxyconfiguration.Available directions are :• Disabled (0)• EXT to LAN (1)• LAN to EXT (2)REM: If ProxySide is set to “disabled”, then the full proxy entry will be disabled, regardless ofthe other entry parameter's values.Port number on which the eWON will listen.For example, if the eWON must forward ports on a web server on port 80 and the client willconnect to the eWON on port 8080, then incoming port (ProxyPort)=8080 and Destinationport (ProxySrvPort)=80Port number on which the eWON will connect when it receives a connection from the proxyclient. This port will be the server port on device with the Destination IP address.The IP Address of the server the eWON will connect to when it receives a connection on itsproxy port (ProxyPort).REM: If the Destination IP address is set to 0, then the full proxy entry will be disabled,regardless of the other entry parameter's values.Table 37: Proxy Entry parameters tableNote: There are 10 Proxy Entries, the # character found in the table above represent the index of the proxy entry, first entry has theindex 1 (i.e.: ProxyProto1), the last entry has the index 10 (i.e.: ProxyProto10).RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 59