blob: 8baad5be33df308ced4b3fcdc9f377d8eb0586a2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
@startuml
label _ [
{{
title RADIUS workflow for lease allocation in the DHCPv4 server
:Packet Received;
:Subnet Selection;
start
partition "**subnet4_select** callout" {
:Retrieve reservation from host cache for the current host and subnet.;
if (Reservation found?) then (yes)
if (Reservation for a different subnet?) then (yes)
:Reselect the subnet to the one from the reservation.;
else (no)
endif
:Retrieve reservation from host cache again in case the subnet was reselected.;
if (Reservation with cached attributes?) then (yes)
:Use cached attributes from the reservation.;
stop
else (no)
endif
else (no)
endif
:Send Access-Request.;
if (Response) then (Access-Accept)
if (Framed-IP-Address attribute present?) then (yes)
:Reselect subnet to match a subnet the contains the IP address.;
else (no)
endif
if (Framed-IP-Pool attribute present?) then (yes)
:Reselect subnet to match a subnet guarded by the client class.;
:Assign packet to client class represented by the value of Framed-IP-Pool.;
else (no)
endif
:Populate the host cache with the reselected subnet ID and the potential class guard or IP address returned from the RADIUS server.;
else (Access-Reject)
stop
endif
stop
}
partition "**lease4_select**, **lease4_renew**, **lease4_release**, **lease4_decline**, **lease4_expire** callouts"
:Send Accounting-Request asynchronously.;
}
}}
{{
title RADIUS workflow for lease allocation in the DHCPv6 server
:Packet Received;
:Subnet Selection;
start
partition "**subnet6_select** callout" {
:Retrieve reservation from host cache for the current host and subnet.;
if (Reservation found?) then (yes)
if (Reservation for a different subnet?) then (yes)
:Reselect the subnet to the one from the reservation.;
else (no)
endif
:Retrieve reservation from host cache again in case the subnet was reselected.;
if (Reservation with cached attributes?) then (yes)
:Use cached attributes from the reservation.;
stop
else (no)
endif
else (no)
endif
:Send Access-Request.;
if (Response) then (Access-Accept)
if (Framed-IPv6-Address attribute present?) then (yes)
:Reselect subnet to match a subnet the contains the IP address.;
else (no)
endif
if (Framed-IP-Pool attribute present?) then (yes)
:Reselect subnet to match a subnet guarded by the client class.;
:Assign packet to client class represented by the value of Framed-IP-Pool.;
else (no)
endif
:Populate the host cache with the reselected subnet ID and the potential class guard or IP address returned from the RADIUS server.;
else (Access-Reject)
stop
endif
stop
}
partition "**lease6_select**, **lease6_renew**, **lease6_rebind**, **lease6_release**, **lease6_decline**, **lease6_expire** callouts"
:Send Accounting-Request asynchronously.;
}
}}
]
@enduml
|
