How to configure Linux Debian syslog for Linksys router

I’ve a Linux Debian server with syslogd running. I would like to send logs from a Linksys router to the Linux syslogd.

Right now, syslogd is configured by default installation. I know how to configure the linksys router for sending logs to the Linux server.

How can I configure syslog.conf in order to receive and store all logs from Linksys into a specific log file?

Can we put a max size limit to the size of the log file?

Thanks in advance.