Well, I guess if they way I said it make too hard to understand, i'll try to simplify it.
In essence, How can I add/enable tunl0 interface for ipip support on pfsense ( as it's a FreeBSD system and I
have no knowledge of it. though I know it's UNIX-like OS ).
for example : i could not just add this "ifconfig tun0 create" on pfsense console terminal, can I ?
WebGUI doesn't really help in solving what I want.
You can add cron items directly to the config.xml with the latest snapshots. To see the syntax just open a config.xml of a recent snapshot and have a look at the very bottom.
Keeping logs at embedded systems at least is not possible as we don't write them to disk due to limited writecycles of cf-media. If you really want to have historical data use a remote syslog server. At least in non home environments (and even in those sometimes) there should be a machine around that can capture the systemlogs as this is not a heavy task. I even have a server running at home that has some tasks setup to produce today, yesterday, current week, last week rotating logs.
Btw, newer snapshots have a states rrd graph. It should log if you reach the limit. Maybe view that graph to see if this really is the case when the problems occur. You even can view it after reboot (if you are not running the embedded version or livecd as you have to do a clean reboot from gui or shell to write the rrds to disk).
