gentoo1 wrote: > > 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 >
Issue solved! right: # scrub scrub in on $ext_if all min-ttl 15 max-mss 1400 fragment reassemble scrub out on $ext_if all min-ttl 15 max-mss 1400 fragment reassemble scrub in scrub in all fragment reassemble scrub in on $ext_if all no-df fragment reassemble scrub on $ext_if all reassemble tcp fragment reassemble Thanks to Nick Gustas! -- View this message in context: http://www.nabble.com/OpenBSD-4.1----NAT-%2B-ttl%3D0-trouble-tp14463336p14477341.html Sent from the openbsd user - misc mailing list archive at Nabble.com.
