Ipv6 Addresses; Ipv6 Terms - Siemens SCALANCE XM-400 Configuration Manual
Industrial ethernet switches
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Also See for SCALANCE XM-400:
- Configuration manual (960 pages) ,
- Operating instructions manual (80 pages) ,
- Instructions manual (60 pages)
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IP addresses
3.3 IPv6 addresses
● There is normally no fixed address assignment; in other words, when a client requests an
IP address again, it normally receives a different address from the previous address. It is
possible to configure the DHCP server so that the DHCP client always receives the same
fixed address in response to its request. The parameter with which the DHCP client is
identified for the fixed address assignment is set on the DHCP client. The address can be
assigned via the MAC address, the DHCP client ID, PROFINET device name or the device
name. You configure the parameter in "System > DHCP Client (Page 173)".
● The following DHCP options are supported:
– DHCP option 3: Assignment of a router address
– DHCP option 6: Assignment of a DNS server address
– DHCP option 66: Assignment of a dynamic TFTP server name
– DHCP option 67: Assignment of a dynamic boot file name
– DHCP option 82: Assignment of IP addresses depending on the device index, switch
Note
DHCP uses a mechanism with which the IP address is assigned for only a short time (lease
time). If the device does not reach the DHCP server with a new request on expiry of the
lease time, the assigned IP address, the subnet mask and the gateway continue to be used.
The device therefore remains accessible under the last assigned IP address even without
a DHCP server. This is not the standard behavior of office devices but is necessary for
problem-free operation of the plant.
3.3
IPv6 addresses
3.3.1
IPv6 terms
Network node
A network node is a device that is connected to one or more networks via one or more
interfaces.
Router
A network node that forwards IPv6 packets.
Host
A network node that represents an end point for IPv6 communication relations.
Link
A link is, according to IPv6 terminology, a direct layer 3 connection within an IPv6 network.
Neighbor
Two network nodes are called neighbors when they are located on the same link.
IPv6 interface
26
port, the VLAN ID or user-defined identification values of the DHCP relay agent.
SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12
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