1. Networking Essentials Chapter 7 Fall, 2012

2.  Like a telephone number ◦ (708) 579 - 6300 ◦ 162.5.5.3

3.  Class A ◦ First octet digit is _________ ◦ In binary, first digit is ____ ◦ N.H.H.H  N = _______________  H = _______________

4.  Class B ◦ First octet digit is _________ ◦ In binary, first digit is ____ ◦ N.N.H.H  N = _______________  H = _______________

5.  Class C ◦ First octet digit is _________ ◦ In binary, first digit is ____ ◦ N.N.N.H  N = _______________  H = _______________

6.  Class D ◦ First octet digit is _________ ◦ Used for ________________  Class E ◦ First octet digit is _________ ◦ Used for ________________

7.  Class A private IP addresses ◦ Range = ___. ___. ___. ___ - ___. ___. ___. ___  Class B private IP addresses ◦ Range = ___. ___. ___. ___ - ___. ___. ___. ___  Class C private IP addresses ◦ Range = ___. ___. ___. ___ - ___. ___. ___. ___

8.  How does NAT work?  How does APIPA work?  APIPA addresses = ___. ___. ___. ___

9.  Broadcast …  Multicast …  Unicast …

10.  IPv4 ◦ 4.3 million possible addresses ◦ 32 bits ◦ no integrated security (relies on other layers)  IPv6 ◦ 3.4 gazillion (3.4 x 10 38 ) 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?

11.  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 _________!)

12.  2001:0db8:3c4d:0012:0000:0000:1234:56ab aka  2001:db8:3c4d:12:0:0:1234:56ab aka  2001:db8:3c4d:12::1234:56ab

13.  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)