ECHO, IP expiry and, 228-231
defensive tools and, 5
network intrusion detection and, 303
end user reporting, 4
endian byte order differences, 197, 261
ENGINE, 166
engines, 166
error handling
Firewalk security tool and, 352
libdnet library and, 40, 42, 74, 76
libnids library and, 94-95
libpcap library and, 14-17, 19, 21
libsf library and, 119-120
Ethernet
Firewalk security tool and, 348
libdnet library and, 48, 50, 56-57, 130, 133, 141-143
libpcap library and, 13-14
packet sniffing on, 194-195
Scoop packet sniffing sample program for, 198-215
symbolic constants for, 50
Event Generator (E-Box), 87-112
EVP interface, 164-166
extensible markup language (XML), 260
extraneous loss, IP expiry and, 236