[ILUG] From the register. XP machine rooted in 200 seconds.

[Timothy Murphy]

On Wednesday 01 December 2004 14:57, Chris Higgins wrote:

> > >Which is
> > > unfortunate, because it'll lead to even more people thinking
> > > blocking ICMP is a good thing to do.
> >
> > Isn't it?
>
> Blocking ICMP is bad. Most things rely on it, and will fail without it
... . 
> #define ICMP_ECHOREPLY          0       /* Echo Reply                   */
> #define ICMP_DEST_UNREACH       3       /* Destination Unreachable      */
> #define ICMP_SOURCE_QUENCH      4       /* Source Quench                */
> #define ICMP_REDIRECT           5       /* Redirect (change route)      */
> #define ICMP_ECHO               8       /* Echo Request                 */
> #define ICMP_TIME_EXCEEDED      11      /* Time Exceeded                */
> #define ICMP_PARAMETERPROB      12      /* Parameter Problem            */
> #define ICMP_TIMESTAMP          13      /* Timestamp Request            */
> #define ICMP_TIMESTAMPREPLY     14      /* Timestamp Reply              */
> #define ICMP_INFO_REQUEST       15      /* Information Request          */
> #define ICMP_INFO_REPLY         16      /* Information Reply            */
> #define ICMP_ADDRESS            17      /* Address Mask Request         */
> #define ICMP_ADDRESSREPLY       18      /* Address Mask Reply           */
.....
> The ICMP_ECHO is for Ping ...

I assumed the referemce was to pinging.
Do we have an inalienable right to ping?

To ping or not to ping, that is the question.

Ps I've stopped getting messages from Sir Anthony every 95 seconds or so
on my ADSL connection, which I assumed were ICMP packets.
(rp-pppoe thought they were the wrong length.)
Has Eircom changed, or has rp-pppoe decided to stop complaining?


-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland