Sorry, but that sounds too much like the joker on the Yahoo group, which I had to quit because it was so full of mis-information. There was this guy who was adamant that packets coming into the router were effected by the outgoing access-list. "Very few people understand ACLs correctly" or something similar he said. "Try it yourself, you will see!" I don't know how many people's time he wasted on that fiasco.
There is no "mathematical" reason. Yes, 127 is 0x7f, and 01111111, and the answer to everything is 42 (101010). It looks neat, but it has no significance. Why was 45.0.0.0 assigned to InterOp, of all people? Why does InterOp even need a Class A address, let alone any public addresses whatsoever? Why do some Hospitals insist on using the 45/8 network internally because there is only a potential for conflict once a year (or so they think)? And is the moon made of cheese? So what say you, "friends" on the Cisco list? Am I just clueless and there is a "mathematical" reason? I mean, I know about 20 programming languages, including several assembly languages for various processors, and I can't think of a valid reason or any benefit for choosing 127 as the loopback address. It's not like a compare and branch instruction is going to be any faster if the number is 2130706433 (127.0.0.1 as a 32-bit number) or not. Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -----Original Message----- From: Bharani [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 10:54 AM To: Reimer, Fred Subject: Re: Interesting Question [7:74652] Dear Friend There is a mathematical reson for this and very few people know abt it , please try to speak to your friends to find out Bani ----- Original Message ----- From: "Reimer, Fred" To: "Bharani" ; Sent: Tuesday, September 02, 2003 8:16 PM Subject: RE: Interesting Question [7:74652] > There is none. Other than the fact that it is the last Class A address. > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary information which > may be legally privileged. It is intended only for the named recipient(s). > If an addressing or transmission error has misdirected the email, please > notify the author by replying to this message. If you are not the named > recipient, you are not authorized to use, disclose, distribute, copy, print > or rely on this email, and should immediately delete it from your computer. > > > -----Original Message----- > From: Bharani [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 02, 2003 9:14 AM > To: [EMAIL PROTECTED] > Subject: Interesting Question [7:74652] > > Dear Readers > > Does any one know the Mathematical reason for making > 127.X.X.X as a Loop Back address, if so please let me know > > Thanks in advance > Bani > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=74663&t=74652 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
