[Kea-users] Shared network match

[admin at mailsrv.globnet.md]

Sorry, forgot attachments 


From: admin at mailsrv.globnet.md 
To: "kea-users" <kea-users at lists.isc.org> 
Sent: Thursday, August 26, 2021 11:18:33 AM 
Subject: Shared network match 

Hello. 
I am trying to implement the following scenario: 
DHCP will allocate ip addresses from different subnets acording to matching client class. 
Each PoP(router) will have own client class, based on suboption 150 of option 82. 
I made a client class "GponTestMGM"(kea-dhcp4.conf in attachment) 
{ 
"name":"GponTestMGM", 
"test":"option[82].option[150].hex == 0x6441a000" 
} 

In the logs i see that kea matches dhcpdiscover to this client class(dhcp4 log in attachment): 
...EVAL_RESULT Expression GponTestMGM evaluated to 1 
And also 
...DHCP4_CLASS_ASSIGNED [hwtype=1 60:f1:8a:be:5c:18], cid=[01:60:f1:8a:be:5c:18], tid=0x55155455: client packet has been assigned to the following class(es): ALL, GponTestMGM, UNKNOWN 

But the problem is that kea doesnt match shared network and subnet. 
Configuration of shared network: 
sharedred-networks": [ 
{ 
"subnet4": [ 
{ 
"id": 1, 
"option-data": [{"name": "routers","data": "100.65.160.1"} ], 
"pools": [{ "pool": "100.65.160.2 - 100.65.160.100"}], 
"rebind-timer": 20, 
"renew-timer": 10, 
"subnet": "100.65.160.0/19", 
"valid-lifetime": 30, 
"client-class": "GponTestMGM" 
} 
], 
"valid-lifetime": 200, 
"interface":"eno3" 
} 
] 

But in the logs i see: 
...failed to select subnet for the client 

What am i doing wrong? 
THanks! 

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