Choosing an Internet Protocol
Determine the IP address version used when the HMC connects to your service provider.
Most users use Internet Protocol Version 4 (IPv4) to connect to a service provider. IPv4 addresses appear
in the format representing the four bytes of the IPv4 address, separated by periods (for example,
9.60.12.123) to access the Internet. You can also use Internet Protocol Version 6 (IPv6) to connect to a
service provider. IPv6 is often used by network administrators to ensure unique address space. If you are
unsure of the Internet Protocol used by your installation, contact your network administrator. For more
information about using each version, see “Setting the IPv4 address” on page 55 and “Setting the IPv6
address” on page 56.
Internet SSL address lists
Learn about the addresses the HMC uses when it is using Internet SSL connectivity.
The HMC uses the following IPv4 addresses to contact IBM service and support when it is configured to
use Internet SSL connectivity.
The following IPv4 addresses are for all locations:
v
129.42.26.224
v
129.42.34.224
v
129.42.42.224
v
170.225.15.41
v
129.42.56.216
v
129.42.58.216
v
129.42.60.216
The following IPv4 addresses are for the Americas:
v
129.42.160.48
v
129.42.160.49
v
207.25.252.200
v
207.25.252.204
The following IPv4 addresses are for all locations other than the Americas:
v
129.42.160.48
v
129.42.160.50
v
207.25.252.200
v
207.25.252.205
Note:
When configuring a firewall to allow an HMC to connect to these servers, only the IP addresses
specific to the geographic region are required.
The HMC uses the following IPv6 addresses to contact IBM service and support when it is configured to
use Internet SSL connectivity:
v
2620:0:6C0:1::1000
v
2620:0:6C1:1::1000
v
2620:0:6C2:1::1000
Using a virtual private network to connect to remote support
A virtual private network (VPN) provides security when connecting to remote support.
A VPN gives users the privacy of a separate network over public lines by substituting encryption and
other security measures for the physically separate network lines of traditional private networks. In
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Power Systems: Installing and configuring the Hardware Management Console
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