networking essentials chapter 7 fall, 2012. like a telephone number ◦ (708) 579 - 6300 ◦...
TRANSCRIPT
Networking Essentials
Chapter 7
Fall, 2012
Like a telephone number
◦(708) 579 - 6300
◦162.5.5.3
Class A
◦ First octet digit is _________
◦ In binary, first digit is ____
◦ N.H.H.H
N = _______________
H = _______________
Class B
◦ First octet digit is _________
◦ In binary, first digit is ____
◦ N.N.H.H
N = _______________
H = _______________
Class C
◦ First octet digit is _________
◦ In binary, first digit is ____
◦ N.N.N.H
N = _______________
H = _______________
Class D
◦ First octet digit is _________
◦ Used for ________________
Class E
◦ First octet digit is _________
◦ Used for ________________
Class A private IP addresses
◦ Range = ___ . ___ . ___ . ___ - ___ . ___ . ___ . ___
Class B private IP addresses
◦ Range = ___ . ___ . ___ . ___ - ___ . ___ . ___ . ___
Class C private IP addresses
◦ Range = ___ . ___ . ___ . ___ - ___ . ___ . ___ . ___
How does NAT work?
How does APIPA work?
APIPA addresses = ___ . ___ . ___ . ___
Broadcast …
Multicast …
Unicast …
IPv4 ◦ 4.3 million possible addresses◦ 32 bits◦ no integrated security (relies on other layers)
IPv6 ◦ 3.4 gazillion (3.4 x 1038) possible addresses◦ 128 bits◦ integrated IPSec◦ header is smaller (contains fewer fields) so it’s faster◦ multiple IP addresses may be assigned to same host
Channel bonding, anyone?
2001:0db8:3c4d:0012:0000:0000:1234:56ab _______________ _____ _____________________ Hexadecimal! Eight “blocks” Colons instead of “dots” Browser (notice brackets):
http: //[2001:0db8:3c4d:0012:0000:0000:1234:56ab]/index.html
(thank goodness for _________!)
2001:0db8:3c4d:0012:0000:0000:1234:56ab
aka
2001:db8:3c4d:12:0:0:1234:56ab
aka
2001:db8:3c4d:12::1234:56ab
0:0:0:0:0:0:0:0 (aka ::) - equal to 0.0.0.0 0:0:0:0:0:0:0:1 – loopback (127.0.0.1) 0:0:0:0:0:0:192.168.100.1 – existing IPv4 addy 2000::/3 – global unicast address range FC00::/7 – unique local unicast range FE80::/10 – link-local unicast range FF00::/8 – multicast range 3FFF:FFFF::/32 – reserved for examples and doc. 2001:0DB8::/32 – also reserved for same 2002::/16 – 6to4 (transition system- see p. 230)
