ping: unknown protocl icmp

sha ying shaying at ict.a.cn
Fri Nov 28 08:07:52 PST 2003


   
   thanks, it's ok.   



>
> thehe ....
> you might have "accidently" deleted your /etc/protocols
> here is my ...
> ---
> #
> # protocols     This file describes the various protocols that are
> #               available from the TCP/IP subsystem.  It should be
> #               consulted instead of using the numbers in the ARPA
> #               include files, or, worse, just guessing them.
> #
>
> ip      0       IP      # internet protocol, pseudo protocol number
> icmp    1       ICMP    # internet control message protocol
> igmp    2       IGMP    # internet group multicast protocol
> ggp     3       GGP     # gateway-gateway protocol
> tcp     6       TCP     # transmission control protocol
> pup     12      PUP     # PARC universal packet protocol
> udp     17      UDP     # user datagram protocol
> idp     22      IDP     # WhatsThis?
> raw     255     RAW     # RAW IP interface
>
> # End.
> ---
>
>   H
> CUH Rainer Peter Feller
>   H




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