[comp.sys.xerox] TCP PRINTICMP patch

SCHMIDT@SUMEX-AIM.STANFORD.EDU (Christopher Schmidt) (02/13/88)

	[SUMEX-AIM.STANFORD.EDU]<LISPUSERS.LYRIC>TCPPRINTICMPPATCH.LSP, .DFASL
is a small file that redefines PRINTICMP to print the reason a host is
unreachable as well as the fact that it is unreachable.  This patch is of
interest only to people who use an IPTRACE window and see ICMP 
"host unreachable" messages whose meaning is unclear.
	BTW, I heartily recommend that people who use TCP always load
TCPEXPORTS.  When this file is loaded the IPTRACE, DOMAIN.TRACE and
FTPDEBUG windows are much more informative because the IP constants
get printed out symbolically.  There's not much point in using
TCPPRINTICMPPATCH unless you have TCPEXPORTS loaded.
--Christopher
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