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IT people check in v. networking Q

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Old May 8, 2007 | 07:12 PM
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Default IT people check in v. networking Q

does 127.0.0.1 have a default subnet mask?


I know its loopback, and i know 127.x.x.x cannot be subnetted.... but is there a default subnet?
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Old May 8, 2007 | 07:22 PM
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255.255.255.0
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duck squad member #00003
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Old May 8, 2007 | 07:22 PM
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Originally Posted by 94civicEX
255.255.255.0
no.
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Old May 8, 2007 | 07:24 PM
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I would just assume 255.255.255.0 but I'm not certain.. Why?
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Old May 8, 2007 | 07:25 PM
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Oh, try 255.0.0.0
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Old May 8, 2007 | 07:26 PM
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255.0.0.0
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duck squad member #00003
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Old May 8, 2007 | 07:27 PM
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Originally Posted by MarshyTheKid
I would just assume 255.255.255.0 but I'm not certain.. Why?
255.255.255.0 is the default for a class C

Class A - 1.x.x.x - 126.x.x.x has a default of 255.0.0.0
Class B - 128.x.x.x - 191.x.x.x has a deafult of 255.255.0.0
Class C - 192.x.x.x - 223.x.x.x has a default of 255.255.255.0

I dont remember if 127 falls in A, B or neither.... and my textbook is pretty vague about it.
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Old May 8, 2007 | 07:28 PM
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http://technet2.microsoft.com/window....mspx?mfr=true


ET phone 127.0.0.1!!
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Old May 8, 2007 | 07:30 PM
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yea i just found the same page :uhhok:

thanks guys
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Old May 8, 2007 | 07:35 PM
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127.0.0.1 = 127.231.214.15 = 127.12.18.99 = 127.185.131.2

127.x.x.x all is loopback. The whole class A is a loopback.

Since it's a class A..... 255.0.0.0
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