what does the / mean after an IP address??

[gman10]

Bear with my guys, the novice is back..

I see IP's like 167.206.154.168/29... what does the /29 signify??

Baby steps...


Thanks!
Gman

 

[svermill]

Out of a possible 32, the number of bits set to 1 in the subnet mask (e.g. 255.255.255.0 = /24).

 

[gman10]

could you further explain that?

255.255.255.0 is my subnet BUT the /24 tells me what exactly.. the way I see it I'm counting the 3 octets from left to right which total 24 bits is that it.. the 4th octet or (.0) mean that I have 254 possible clients on my lan?

confused

 

[svermill]

Not confused anymore. You seem to have the concept. /24 is just a lot easier to write than 255.255.255.0.

 

[gman10]

your a great teacher, I do understand it!!!!!

CHEERS!

 

[jeter]

To break it down.

/30= 255.255.255.252

/29= 255.255.255.248

/28= 255.255.255.240

/27= 255.255.255.224

/26= 255.255.255.192

/25= 255.255.255.128

/24= 255.255.255.0 “Reserve your right to think, for even to think wrongly is better than not to think at all”

Fisher CCNA, Network+

 

[svermill]

jeter makes a good point. Memorizing the translation between 255 and /x is very desirable. You'll probably see that for yourself as you make more progress in the near future.