Hello :) I use OpenBSD 4.1 for gateway for my laptop. I set in my pf.conf file : nat on fxp0 from rl0:network to any -> fxp0 ..and other rules. OK and I have Internet on my laptop. Worked fine! But yesterday my ISP set ttl to 0 ---> ttl=0... and now i try to change this value but unsuccessful...
I put this in my pf.conf but ttl is still zero.: scrub out on $ext_if min-ttl 10 .... scrub in on $ext_if all fragment reassemble min-ttl 15 max-mss 1400 I use both options : in and out - unsuccessful... ################################################ pfctl -sr show : scrub in all fragment reassemble scrub in on fxp0 all min-ttl 15 max-mss 1400 fragment reassemble scrub out on fxp0 all min-ttl 15 max-mss 1400 fragment reassemble scrub in on fxp0 all no-df fragment reassemble scrub on fxp0 all reassemble tcp fragment reassemble ################################################ And ping form openbsd to nabble.com is with tll=0: ping nabble.com PING nabble.com (216.139.236.162): 56 data bytes 64 bytes from 216.139.236.162: icmp_seq=0 ttl=0 time=165.931 ms 64 bytes from 216.139.236.162: icmp_seq=1 ttl=0 time=164.822 ms --- nabble.com ping statistics --- 2 packets transmitted, 2 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 164.822/165.376/165.931/0.687 ms ==> And on my laptop I don't see anything behind openbsd gw. In linux case --> I just add this rule in iptables and i change ttl successfully : iptables -t mangle -A PREROUTING -i eth1 -j TTL --ttl-inc 2. But please let me know how I can change ttl in OpenBSD. Kind Regards -- View this message in context: http://www.nabble.com/OpenBSD-4.1----NAT-%2B-ttl%3D0-trouble-tp14463336p14463336.html Sent from the openbsd user - misc mailing list archive at Nabble.com.
