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Old 2nd August 2008
ecnalbya ecnalbya is offline
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Join Date: Aug 2008
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I do not want to block ICMP packets entirely. That would be too easy for you to answer my question. lol. I intended to change the ttl value to 125. I am a newbie, correct me if were wrong. I want to get 3 answers here,

1. /etc/sysctl.conf file (I tried it by add new line: net.inet.ip.ttl=125
If it works on FreeBSD, it should work on OpenBSD as well, right? Did anyone try this on OpenBSD?);
2. /etc/pf.conf file (I tried to add two lines: scrub in on $ext_if all min-ttl 125
scrub out on $ext_if all min-ttl 125
restart computer, still no luck);
3. Kernel (by default, the ttl value is 255, where in the kernel that I can jump in and change this value?)
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