On Fri, 2009-09-25 at 17:48 +0200, Casper.Dik at Sun.COM wrote: > > Exported Interfaces > > ------------------------------------------------------------- > > > > Interface Classification Comments > > ------------------------------------------------------------- > > > > ping -D option Committed ping(1M) > > ping -F option Committed traceroute(1M) > > ------------------------------------------------------------- > > "traceroute -F option", surely?
Yes, that's a typo. > > -F > > Turn off path MTU discovery. For IPv4 this means setting > > the Don't Fragment bit. For IPv4 and IPv6 this means to > > not allow fragmentation as the datagrams are sent. If > > the packetlen exceeds the MTU, then traceroute may > > report that sending failed due to Message too long. > >--- > > > This sounds wrong. If you set the "don't fragment bit" then you ARE doing > path MTU discovery. I think we only do this on TCP/IP and we don't > do this for ICMP (ping) or UDP (traceroute). That's also a typo, it should say "Turn on path MTU discovery". Note that both ping and traceroute can do either ICMP or UDP (ping -U and traceroute -I). -Seb
