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IPv6 Considerations

In RADIUS accounting, these attributes are used to contain the user's IPv6 address:

  • Framed-Interface-Id / Framed-IPv6-Prefix
  • Framed-IPv6-Address

Currently, all these IPv6 attributes are ignored.

Some devices pass the IPv6 address as text in the Calling-Station-ID attribute.

The Calling-Station-ID is also ignored if it does not contain a valid IPv4 address.

RADIUS accounting messages that contain an IPv6 address attribute and no IPv4 address attribute are forwarded to the proxy server. If no proxy server is configured, IPv6 attributes discarded.