### Only release a small set of required attributes to the NRPS
### Update/Inject Operator-Name for your site
rewrite OutboundFilter {
    # Operator-Name
    RemoveAttribute 126
    AddAttribute 126:'1example.ac.uk

    WhitelistMode on
    # User-Name
    WhitelistAttribute 1
    # EAP-Message
    WhitelistAttribute 79
    # Message-Authenticator
    WhitelistAttribute 80
    # State
    WhitelistAttribute 24
    # Proxy-State
    WhitelistAttribute 33
    # Operator-Name
    WhitelistAttribute 126
    # Class
    WhitelistAttribute 25
    # Calling-Station-Id
    WhitelistAttribute 31
    # Called-Station-Id
    WhitelistAttribute 30
    # Chargeable-User-Identity
    WhitelistAttribute 89
}