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在 09-09-2004 02:56 PM
在 09-09-2004 02:56 PM
A Network Problem
Why is UDP needed? Why can't a user program directly access IP?
Thanks
Eric
Thanks
Eric
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在 09-10-2004 06:46 AM
在 09-10-2004 06:46 AM
A Network Problem
Hi Rric :
I think you are talking about the raw IP
access. Raw sockets are used to bypass the
transport layer, TCP and UDP, and are used to
capture raw IP packets. Typically, raw
sockets implementation have been buggy,
unportable, and limited in use. Raw sockets
are not supported in HP-UX.
HP-UX has an unsupported raw socket
definition SOCK_RAW in
/usr/include/sys/socket.h.
The effective user ID must be superuser.
HP-UX does not support routing sockets or
sequential packet/encapsulated packet
functionality.
.
..
I think you are talking about the raw IP
access. Raw sockets are used to bypass the
transport layer, TCP and UDP, and are used to
capture raw IP packets. Typically, raw
sockets implementation have been buggy,
unportable, and limited in use. Raw sockets
are not supported in HP-UX.
HP-UX has an unsupported raw socket
definition SOCK_RAW in
/usr/include/sys/socket.h.
The effective user ID must be superuser.
HP-UX does not support routing sockets or
sequential packet/encapsulated packet
functionality.
.
..
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