This string adds attributes to the keep-alive request before sending it to Host. The value is a comma-separated list of attribute value pairs on one line, exactly as for any reply item. Special formatting characters are allowed, for more information, see Section 3.3. Special formatters.

Here is an example of using AddToKeepaliveRequest with KeepaliveRequestType:

# Send Access-Request as keepalive probe
KeepaliveRequestType Access-Request
AddToKeepaliveRequest User-Name=mikem,User-Password=fred