mirror of
https://gitlab.isc.org/isc-projects/kea
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78 lines
2.8 KiB
Plaintext
78 lines
2.8 KiB
Plaintext
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@startuml
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label _ [
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{{
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title RADIUS workflow for lease allocation in the DHCPv4 server
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:Packet Received;
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:Subnet Selection;
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start
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partition "**subnet4_select** callout" {
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:Retrieve reservation from host cache for the current host and subnet.;
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if (Reservation found?) then (yes)
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if (Rservation for a different subnet?) then (yes)
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:Reselect the subnet to the one from the reservation.;
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else (no)
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endif
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:Retrieve reservation from host cache again in case the subnet was reselected.;
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else (no)
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endif
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:Send Access-Request.;
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if (Response) then (Access-Accept)
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if (Framed-IP-Address attribute present?) then (yes)
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:Reselect subnet to match a subnet the contains the IP address.;
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else (no)
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endif
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if (Framed-IP-Pool attribute present?) then (yes)
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:Reselect subnet to match a subnet guarded by the client class.;
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:Assign packet to client class represented by the value of Framed-IP-Pool.;
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else (no)
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endif
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:Populate the host cache with the reselected subnet ID and the potential IP address returned from the RADIUS server.;
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else (Access-Reject)
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endif
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}
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partition "**lease4_renew**, **lease4_release**, **lease4_decline**, **lease4_expire** callouts"
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:Send Accounting-Request asynchronously.;
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}
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}}
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{{
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title RADIUS workflow for lease allocation in the DHCPv6 server
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:Packet Received;
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:Subnet Selection;
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start
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partition "**subnet6_select** callout" {
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:Retrieve reservation from host cache for the current host and subnet.;
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if (Reservation found?) then (yes)
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if (Rservation for a different subnet?) then (yes)
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:Reselect the subnet to the one from the reservation.;
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else (no)
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endif
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:Retrieve reservation from host cache again in case the subnet was reselected.;
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else (no)
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endif
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:Send Access-Request.;
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if (Response) then (Access-Accept)
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if (Framed-IPv6-Address attribute present?) then (yes)
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:Reselect subnet to match a subnet the contains the IP address.;
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else (no)
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endif
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if (Framed-IP-Pool attribute present?) then (yes)
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:Reselect subnet to match a subnet guarded by the client class.;
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:Assign packet to client class represented by the value of Framed-IP-Pool.;
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else (no)
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endif
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:Populate the host cache with the reselected subnet ID and the potential IP address returned from the RADIUS server.;
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else (Access-Reject)
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endif
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}
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partition "**lease6_renew**, **lease6_rebind**, **lease6_release**, **lease6_decline**, **lease6_expire** callouts"
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:Send Accounting-Request asynchronously.;
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}
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}}
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]
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@enduml
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