-----Original Message----- From: Reid, Rowan (GSP) [SMTP:ReidR@gspinc.com] Sent: Tuesday, April 25, 2000 9:49 AM
2.) I have been used to specifying machine addresses or network addresses as 192.168.1.0/255.255.255.0 I am still a bit unsure of the other context which is 192.168.1.0/24 I was told that the '24' represents which octet is a part of teh network in that 32=255.255.255.255 16=255.255.255.0 (may have messed it up. is this correct. what does it mean really
the 24=255.255.255.0 and 16=255.255.0.0. I understand it this way. Each part of the dotted quad is a decimal representation of a byte and four bytes is 32 bits. The '24' in your example above indicates that the first 24 bits of the 32 in the netmask are 1. If you translate that into dotted quad the first 3 bytes are full and their decimal value is 255 the last byte is empty and is 0. It is important to remember that the bits fill from the left and are not incremented in binary. If we change the example to 123.45.67.0/25, the first 25 bits (from the left) are 1. The dotted quad again shows the first 3 bytes as full and a value of 255 but the last byte is the binary number 1000000 and has a decimal value of 128. The resulting netmask is 255.255.255.128. Tim -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/