On Wed, Dec 19, 2001 at 07:23:55PM +0300, Maxim Konovalov wrote: > > > I ran into an absolutely clear, but year-old PR pointing out that > > a router in the IPSTEALTH mode will reveal itself when processing > > IP options: kern/23123. > > > > The fix proposed seems clean and right to me: don't do IP options > > at all when in the IPSTEALTH mode. Does anyone have objections? > > If no, I'll commit the fix. > > First of all we should decide what IPSTEALTH is for. Is it just a > Ruslan's net.inet.ip.decttl or it should really stealth the fact of > the routing? If the latter how do we behave in source routing case?
Are there any reasons for a router not to decrement IP TTL besides trying to stay invisible to a third party? As for source routing, I believe a stealthy router should just drop such packets as though it were a host. Of course, source-routed packets destined for the router itself should be accepted. -- Yar To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message
