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4.2
IP Network
In the IP network, MECip-Sec sends and receives telegrams in accordance with the KNXnet/IP
protocol specification. According to the default setting, IP telegrams are sent as IP Multicast to
the IP address 224.0.23.12. Multicast IP address 224.0.23.12 and port 3671 are the defined
values for KNXnet/IP by KNX Association in conjunction with IANA.
Important notes:
All KNX IP devices that are intended to communicate with each other via IP must have
•
the same IP multicast address.
Multicast IP address 224.0.23.12 may need to be changed in respect of the network
•
type and of the network components´ settings. It is recommended to change this
address only when it becomes necessary due to the environment.
IGMP (Internet Group Management Protocol) is used for IP Routing and Discovery.
•
If problems occur for IP address assignment, please ask your network administrator.
•
According to the topology, Individual Addresses that are used for Tunneling channels
•
always have to be assigned in the range of subline addresses. Detailed information
about these additional Individual Addresses can be found in chapter
Tunneling Address
Operational Description
Assignment.
MECip
SECURE
5.4 IP (Secure)
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