Re: firewall, reject: icmp vs. tcp

Bryn Paul Arnold Jones (bpaj@gytha.demon.co.uk)
Thu, 11 Apr 1996 19:05:27 +0100 (BST)


On Wed, 10 Apr 1996, Ulrich Windl wrote:

> On 9 Apr 96 at 14:59, Alan Cox wrote:
> > Someone (not Alan Cox) wrote:
> > > e.g. "ipfwadm -I -a reject -S <source> -D <dest> <port> -P tcp", then
> > > on the host <source> requesting for that connection, ICMP packets
> > > arrive telling something like "port unreachable".
> > >
> > > unfortunately, some tcp/ip stacks, at least win/NT and w95, do not understand
> > > these icmp packets and continue to try to open a connection until a timeout
> > > occurres.
> >
>
> #if YOU_LIKE_STANDARDS
> It really makes me angry that big companies don't obey the standards
> even when they complain to implement one. For eyample Win95 does NOT
> implement DHCP correctly; as Alan indicates they didn't implement IP
> correctly, too. But people buy these things and then they complain...
#else
#if ;)
Hmm, the standards are broken, they don't work with our (MS) products.

#else /* ;) */
What are these peskie standards that stop us calling MS_IP, MS_DHCP, and
MS_... our own propritry methords, and not broken ?

#endif /* ;) */

> #endif /* YOU_LIKE_STANDARDS
>

Bryn

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