Network Fundamentals: flashcards

All cards

Block size

256 − the non-255 mask octet; networks start at multiples of the block size in that octet.

RFC 1918 ranges

10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16.

/31 usable hosts

2 on point-to-point links (RFC 3021); /32 is one host.

IPv6 link-local

fe80::/10, auto-configured on every IPv6 interface, never routed.