Ip Addresses; Ipv4 / Ipv6 - Siemens SCALANCE W1780 Configuration Manual

IP addresses

5.1

IPv4 / IPv6

What are the essential differences?
IP configuration
Available IP addresses
Address format
Loopback
IP addresses of the interface
Header
Fragmentation
Quality of service
Types of frame
SCALANCE W1780/W1740 according to IEEE 802.11ac Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C485-03
IPv4
● DHCP server
● Manual
32-bit: 4, 29 * 10 address‐
9
es
Decimal: 192.168.1.1
with port: 192.168.1.1:20
127.0.0.1
4 IP addresses
● Checksum
● Variable length
● Fragmentation in the
header
● No security
Host and router
Type of Service (ToS) for
prioritization
Broadcast, multicast, uni‐
cast
IPv6
● Stateless Address Autoconfiguration (SLAAC): Stateless
autoconfiguration using NDP (Neighbor Discovery
Protocol)
– Creates a link local address for every interface that
does not require a router on the link.
– Checks the uniqueness of the address on the link that
requires no router on the link.
– Specifies whether the global addresses are obtained
via a stateless mechanism, a stateful mechanism or via
both mechanisms. (Requires a router on the link.)
● Manual
● DHCPv6 (stateful)
128-bit: 3, 4 * 10 addresses
38
Hexadecimal: 2a00:ad80::0123
with port: [2a00:ad80::0123]:20
::1
Multiple IP addresses
● LLA: A link local address (formed automatically) fe80::/128
per interface
● ULA: Several unique local unicast addresses per interface
● GUA: Several global unicast addresses per interface
● Checking at a higher layer
● Fixed size
● Fragmentation in the extension header
Only endpoint of the communication
The prioritization is specified in the header field "Traffic Class".
Multicast, unicast, anycast
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