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V7.2.X contains a global option that can change the message from a disconnect to a CoA, but attributes are not user-configurable (no option to configure additional RFC5176 Radius attributes).
The global option will instruct the code to create a system-defined CoA request. To configure the global option, execute these commands in the CLI of FortiNAC-F:
execute enter-shell
globaloptiontool -name radiusServer.use.coa.for.disconnect -set true
PCAP file before applying the global option:
output.master debugs:
attributes = 1f 13 63 63 2d 39 36 2d 65 35 2d 64 36 2d 36 63 2d 33 37
yams.RadiusManager INFO :: 2025-03-13 08:31:48:017 :: #315 :: RadiusServer sending CoA request for packet id 6e to 10.10.150.7
yams.RadiusManager INFO :: 2025-03-13 08:31:48:017 :: #315 :: CoA packet:
Radius Packet:
Type = Disconnect Request
Identifier = 110
Packet Attributes
31 (Calling-Station-Id) [0] = cc-96-e5-d6-6c-37
PCAP packet details:
RADIUS Protocol
Code: Disconnect-Request (40)
Packet identifier: 0x62 (98)
Length: 39
Authenticator: 8f172712b622dc958d144aa9362f5af0
Attribute Value Pairs
AVP: t=Calling-Station-Id(31) l=19 val=cc-96-e5-d6-6c-37
Type: 31
Length: 19
Calling-Station-Id: cc-96-e5-d6-6c-37
After applying the global option:
PCAP radius packet details:
RADIUS Protocol
Code: CoA-Request (43)
Packet identifier: 0x2f (47)
Length: 65
Authenticator: bbd646d328e7766dbf56d78fab95bbd8
Attribute Value Pairs
AVP: t=Calling-Station-Id(31) l=19 val=54-05-DB-6C-0B-AA
Type: 31
Length: 19
Calling-Station-Id: 54-05-DB-6C-0B-AA
AVP: t=Vendor-Specific(26) l=26 vnd=Fortinet, Inc.(12356)
Type: 26
Length: 26
Vendor ID: Fortinet, Inc. (12356)
VSA: t=Fortinet-Host-Port-AVPair(42) l=20 val=action=bounce-port
Type: 42
Length: 20
Fortinet-Host-Port-AVPair: action=bounce-port
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