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Communication Configuration
54 Smart Distribution Panel with ATS
DHCP. You can use a RFC2131/RFC2132-compliant DHCP server to configure the TCP/IP settings
for the ATS.
1. An ATS sends out a DHCP request that uses the following to identify itself:
– A Vendor Class Identifier (APC by default)
– A Client Identifier (by default, the ATS’s MAC address value)
– A User Class Identifier (by default, the identification of the ATS’s application firmware)
2. A properly configured DHCP server responds with a DHCP offer that includes all of the
settings that the ATS needs for network communication. The DHCP offer also includes the
Vendor Specific Information option (DHCP option 43). By default, the ATS will ignore
DHCP offers that do not encapsulate the APC cookie in the Vendor Specific Information option
using the following hexidecimal format:
Option 43 = 01 04 31 41 50 43
where
– the first byte (
01) is the code
– the second byte (
04) is the length
– the remaining bytes (
31 41 50 43) are the APC cookies
See also
This section briefly summarizes the ATS communication with a DHCP server. For more
detail about how a DHCP server is used to configure the network settings for an ATS,
see “DHCP Configuration” in the InfraStruXure Power Generation System’s online
Network Management User’s Guide.
See your DHCP server documentation to add code to the Vendor Specific Information
option. To disable the APC cookie requirement, see “Local access to the control
console” on page 55.
To change the control console’s DHCP Cookie Is setting, use the Advanced option in
the TCP/IP menu. See “Remote access to the control console” on page 55.