-- In XSR 1.5, one cannot find router.log.

* The path for router.log is specified in the File Appender section of log.properties.
If there is no router.log being created, follow the steps:

Check to see if there is %p_secure_relay_ra_home%\conf\log.properties.
If there is, move it to a backup, such as log.properties.back.

Copy log.properties file from %p_secure_relay_ra_home%\samples\ directory to %p_secure_relay_ra_home%\conf\ directory

Edit log.properties as follows:

log4j.rootLogger=DEBUG, FILE

In the File Appender Section -

log4j.appender.FILE=org.apache.log4j.FileAppender
log4j.appender.FILE.append=true
log4j.appender.FILE.file=router.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{yy-MM-dd HH:mm:ss,SSS} %-5p %30.30c{1} : %m%n

Be certain to remove the exclamation mark in the beginning of each line.
The router.log will be created in %p_secure_relay_ra_home%\bin\ directory by default if no path is specified in 'log4j.appender.FILE.file'. Else specify the path for router.log.

Edit %p_secure_relay_ra_home%\conf\configuration.xml -

<Log>
<LogInDmz>true</LogInDmz>
</Log>

A restart of XSR will be required to take the changes into account.