Vtipkujici ping

[Petr Novotny]

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On 5 Apr 00, at 13:30, Vaclav Stepan wrote:

> Dobre odpoledne,
> 
> ted se mi stalo tohle: 
> 
> PING 172.23.45.40 (172.23.45.40) from 172.20.45.41 : 56 data bytes
> From 172.20.10.1: Time to live exceeded From 172.20.10.1: Time to live
> exceeded From 172.20.10.1: Time to live exceeded From 172.20.10.1:
> Time to live exceeded From 172.20.10.1: Time to live exceeded
> 
> --- 172.23.45.40 ping statistics ---
> 6 packets transmitted, 0 packets received, +5 errors, 100% packet loss
> 
> nevite prosim, co tim chce brana rici?

ping pakety maji nastaveno ttl (time-to-live). Na kazdem hopu 
(pocitaci, ktery paket forwarduje) se tento pocet zmensi o 1. 
(Podivejte se na TTL DETAILS v man ping.)

Nejspis to znamena, ze je nekde (na brane) zk*ena routovaci 
tabulka a paket to posila samo sobe, dokud nevyprsi ttl a neumre.

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--
Petr Novotny, ANTEK CS
Petr.Novotny na antek.cz
http://www.antek.cz
PGP key ID: 0x3BA9BC3F
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