Description
2.6 Interface identifiers and addresses
SCALANCE XM-400/XR-500 Command Line Interface (CLI)
Configuration Manual, 11/2015, C79000-G8976-C252-10
43
IPv4 / IPv6
What are the essential differences?
IP configuration
• DHCP server
• Manual
• Automatic:
– Creates a link local address for every interface on
which IPv6 is activated.
– Stateless Address Autoconfiguration (SLAAC): State-
less autoconfiguration using NDP (Neighbor Discov-
ery Protocol)
• Manual
• Stateful DHCPv6
Available IP addresses 32-bit: 4, 29 * 10
9
ad-
128-bit: 3, 4 * 10
38
addresses
Address format Decimal: 192.168.1.1
with port: 192.168.1.1:20
Hexadecimal: 2a00:ad80::0123
with port: [2a00:ad80::0123]:20
IP addresses of the interface 4 IP addresses Multiple IP addresses
• LLA: A link local address (formed automatically)
fe80::/128 per interface
• ULA: Several unique local unicast addresses per inter-
face
• GUA: Several global unicast addresses per interface
Header
• Checksum
• Variable length
• Fragmentation in the
header
• No security
• Checking at a higher layer
• Fixed size
• Fragmentation in the extension header
Only endpoint of the communication
Quality of service Type of Service (ToS) for
The prioritization is specified in the header field "Traffic
Types of frame Broadcast, multicast,
Multicast, unicast, anycast
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