NeXT Default Network
Hi, Could someone please tell me what 192.42.172.0/24 is or why it should be handled as a special prefix? ftp://ftp-eng.cisco.com/cons/isp/security/Ingress-Prefix-Filter-Templates/T-ip-prefix-filter-ingress-strict-check-v18.txt Thanks, Andras
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Could someone please tell me what 192.42.172.0/24 is or why it should be handled as a special prefix?
ftp://ftp-eng.cisco.com/cons/isp/security/Ingress-Prefix-Filter- Templates/T-ip-prefix-filter-ingress-strict-check-v18.txt
You might review the notes I list below, and specifically RFC 3330. They mention the prefix neither by name or by value... I would expect that this had something to do with a company called NeXT and an operating system called NextStep. It sounds like they came up with a variety of site-local address pre-RFC1918 and pre- RFC3927 that did something similar to RFC 3927 addresses. This is mentioned in passing in RFCs 1117 and 1166. The big question is - are there any NextStep systems still in use (I last used one in 1990), and whether they have been configured with other addresses (seems likely, especially in a DHCP world). http://www.ietf.org/rfc/rfc3330.txt 3330 Special-Use IPv4 Addresses. IANA. September 2002. (Format: TXT=16200 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3789.txt 3789 Introduction to the Survey of IPv4 Addresses in Currently Deployed IETF Standards Track and Experimental Documents. P. Nesser, II, A. Bergstrom, Ed.. June 2004. (Format: TXT=22842 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3790.txt 3790 Survey of IPv4 Addresses in Currently Deployed IETF Internet Area Standards Track and Experimental Documents. C. Mickles, Ed., P. Nesser, II. June 2004. (Format: TXT=102694 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3791.txt 3791 Survey of IPv4 Addresses in Currently Deployed IETF Routing Area Standards Track and Experimental Documents. C. Olvera, P. Nesser, II. June 2004. (Format: TXT=27567 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3792.txt 3792 Survey of IPv4 Addresses in Currently Deployed IETF Security Area Standards Track and Experimental Documents. P. Nesser, II, A. Bergstrom, Ed.. June 2004. (Format: TXT=46398 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3793.txt 3793 Survey of IPv4 Addresses in Currently Deployed IETF Sub-IP Area Standards Track and Experimental Documents. P. Nesser, II, A. Bergstrom, Ed.. June 2004. (Format: TXT=11624 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3794.txt 3794 Survey of IPv4 Addresses in Currently Deployed IETF Transport Area Standards Track and Experimental Documents. P. Nesser, II, A. Bergstrom, Ed.. June 2004. (Format: TXT=60001 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3795.txt 3795 Survey of IPv4 Addresses in Currently Deployed IETF Application Area Standards Track and Experimental Documents. R. Sofia, P. Nesser, II. June 2004. (Format: TXT=92584 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc3796.txt 3796 Survey of IPv4 Addresses in Currently Deployed IETF Operations & Management Area Standards Track and Experimental Documents. P. Nesser, II, A. Bergstrom, Ed.. June 2004. (Format: TXT=78400 bytes) (Status: INFORMATIONAL) -----BEGIN PGP SIGNATURE----- iD8DBQFHTLSMbjEdbHIsm0MRAssIAKDxNy0f4IjveLjyfrxGTkGuslSZ9QCgroID E53IZ9u0/CnSmbKfWn9j7wI= =n0CU -----END PGP SIGNATURE-----
Fred, Brandon, Spiro, Thanks for all your answers.
operating system called NextStep. It sounds like they came up with a variety of site-local address pre-RFC1918 and pre-RFC3927 that did something similar to RFC 3927 addresses.
That's it. 192.42.172.0/24 is often used in examples, but I also found in the "Automatic Host Addition" chapter of http://www.levenez.com/NeXTSTEP/netinfo_user_guide.pdf the following: "The second property, configuration_ipaddr, is required and specifies the address that must not be allocated by nibootpd. This address is in fact the address that NeXT uses to identify a new workstation temporarily during the boot process. It should always be set to 192.42.172.253 explicitly." It looks like this /24 is (was) a must for their "Automatic Host Addition" process. So now I see how this prefix got into Barry's list. Andras
Hey, Fairly certain this isn't the place for this but I've exhausted my googling and I'm sure someone here may know. I was looking for an application that will detect when you connect to a specific wireless network that when connected automatically run a specified application. Any ideas? Thanks! -Ray
Are you talking about Wi-Fi? I believe IBM's connection manager can do that. Frank -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Raymond L. Corbin Sent: Tuesday, November 27, 2007 9:12 PM To: nanog Subject: Running Application when Network Connection Detected Hey, Fairly certain this isn't the place for this but I've exhausted my googling and I'm sure someone here may know. I was looking for an application that will detect when you connect to a specific wireless network that when connected automatically run a specified application. Any ideas? Thanks! -Ray
participants (4)
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Frank Bulk - iNAME -
Fred Baker -
JAKO Andras -
Raymond L. Corbin