>ICMP doesn't use ports. It instead uses types and codes. I've lost my >copy of the URL for iana's documents. Would someone be kind enough to >post that? Well, here's my local copy of RFC 1700: http://rgfsparc.cr.usgs.gov:8090/sysadmin/rfc/rfc1700.txt My favorite RFC search engine is at http://www.rfc-editor.org/rfcsearch.html Here's a useful compilation posted some time ago on one of the lists. Unfortunately, I forgot who put it up. I apologize profusely to the author. ICMP Type Field Codes icmp type code service 0 "echo" 0 "echo-reply" 3 "unreachable" 0 "net-unreachable" 3 "unreachable" 10 3 "unreachable" 11 3 "unreachable" 12 3 "unreachable" 1 "host-unreachable" 3 "unreachable" 2 "protocol-unreachable" 3 "unreachable" 3 "port-unreachable" 3 "unreachable" 4 "fragmentation-df-set" 3 "unreachable" 5 "source-route-failed" 3 "unreachable" 6 3 "unreachable" 7 3 "unreachable" 8 3 "unreachable" 9 4 "quench" 0 "source-quench" 5 "redirect" 0 "redirect-network" 5 "redirect" 1 "redirect-host" 5 "redirect" 2 "redirect-service-network" 5 "redirect" 3 "redirect-service-host" 6 "alternate" 0 "alternate-host-address" 8 "echo" 0 "echo-request" 9 "router" 0 "router-advertisement" 10 "router" 0 "router-selection" 11 "exceeded" 0 "ttl-exceeded" 11 "exceeded" 1 "fragment-reassembly-exceeded" 12 "error" 0 "pointer-error" 12 "error" 1 "missing-option" 12 "error" 2 "bad-length" 13 "timestamp" 0 "timestamp-request" 14 "timestamp" 0 "timestamp-reply" 15 "information" 0 "info-request" 16 "information" 0 "info-reply" 17 "mask" 0 "mask-request" 18 "mask" 0 "mask-reply" 30 "traceroute" 0 "traceroute-forwarded" 30 "traceroute" 1 "packet-discarded" 31 "datagram" 0 "datagram-conversion-error" 32 "mobile" 0 "mobile-host-redirect" 33 "ipv6-request" 0 "ipv6-where-are-you" 34 "ipv6-reply" 0 "ipv6-here-I-am" 35 "mobile" 0 "mobile-registration-request" 36 "mobile" 0 "mobile-registration-reply" 37 "domain-name" 0 "domain-name-request" 38 "domain-name" 0 "domain-name-reply" 40 "security" 0 "bad-spi" 40 "security" 1 "authentication-failed" 40 "security" 2 "decompression-failed" 40 "security" 3 "decryption-failed" 40 "security" 4 "need-authentication" 40 "security" 5 "need-authorization" Cheers, RGF Robert G. Ferrell, CISSP Information Systems Security Officer National Business Center U. S. Dept. of the Interior Robert_G_Ferrellat_private ======================================== Who goeth without humor goeth unarmed. ========================================
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