Missing variables/settings?

[Basixs]

Hi, I was messing around with settings on a test system and following tuning stuff to see the difference but couldn't find the following settings that they were on about: net.inet.tcp.maxtcptw, net.inet.ip.dummynet.max_chain_len and net.inet.ip.fastforwarding.

I tried sysctl -a and sysctl net.inet.ip and found a bunch of settings as root user but those three were missing. Have they been deprecated, hidden or removed? I'm using 64bit opnsense 21.1, and wanted to know how to see/adjust them.

Thanks

[errored out]

Since opnsense is based off pfsense, many of the configurations, hold true.  Their reference material is still applicable is some cases as both ultimately are based off FreeBSD.

[fabian]

Sysctl configurations depend on the used FreeBSD kernel version. You need to check the FreeBSD chagelog if they have been removed. AFAIK OPNsense does not do a lot of kernel changes. It is just HardenedBSD (FreeBSD with more security features)