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fragments. The reassembly queue must be reinitialized and the
associated fragments abandoned whenever the REASSEMBLY TIMER expires,
or a new datagram arrives carrying a FRAG field whose value is less
than the highest FRAG value processed for this fragment sequence.
The reassembly timer MUST be no less than 5 seconds. It is
recommended that fragmentation be avoided by applications wherever
Implementation of fragmentation is optional; an implementation that
does not support fragmentation MUST drop any datagram whose FRAG
field is other than X'00'.
RFC 1928 SOCKS Protocol Version 5 March 1996
The programming interface for a SOCKS-aware UDP MUST report an
available buffer space for UDP datagrams that is smaller than the
actual space provided by the operating system:
o if ATYP is X'01' - 10+method_dependent octets smaller
o if ATYP is X'03' - 262+method_dependent octets smaller
o if ATYP is X'04' - 20+method_dependent octets smaller
8. Security Considerations
This document describes a protocol for the application-layer
traversal of IP network firewalls. The security of such traversal is
highly dependent on the particular authentication and encapsulation
methods provided in a particular implementation, and selected during
negotiation between SOCKS client and SOCKS server.
Careful consideration should be given by the administrator to the
selection of authentication methods.
 Koblas, D., "SOCKS", Proceedings: 1992 Usenix Security Symposium.
Bell-Northern Research Ltd
P.O. Box 3511, Stn. C,
CANADA K1Y 4H7
Phone: (613) 763-9145
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0.0151789 wallclock secs ( 0.01 usr + 0.00 sys = 0.01 CPU)