F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

667

40BConfiguring basic IPv6 settings

IPv6 basics can be configured only at the CLI.

216B

Feature and hardware compatibility

Hard

are IPv6 basics com

atible

F1000-A-EI/F1000-S-EI Yes

F1000-E Yes

F5000 Yes

Firewall module Yes

U200-A Yes

U200-S No

217B

Overview

IPv6, also called IP next generation (IPng), was designed by the IETF as the successor to IPv4. The

significant difference between IPv6 and IPv4 is that IPv6 increases the IP address size from 32 bits to 128

bits.

819BIPv6 features

1663BSimplified header format

IPv6 removes several IPv4 header fields or moves them to the IPv6 extension headers to reduce the length

of the basic IPv6 packet header. The basic IPv6 packet header has a fixed length of 40 bytes to simplify

IPv6 packet handling and to improve forwarding efficiency. Although IPv6 address size is four times the

IPv4 address size, the basic IPv6 packet header size is only twice the size of the option-less IPv4 packet

header.