For people who would encounter the same issue, see https://gitlab.isc.org/isc-projects/kea/-/issues/2660 ________________________________ From: Kea-users <[email protected]> on behalf of Veronique Lefebure <[email protected]> Sent: Thursday, January 27, 2022 3:31 PM To: [email protected] <[email protected]> Subject: [Kea-users] KEA sends valid-lifetime = 0
Hi, For the following query: 16:24:15.730401 IP6 (hlim 1, next-header UDP (17) payload length: 143) cs-lab11-kea.dhcpv6-client > ff02::1:2.dhcpv6-server: [bad udp cksum 0xc2bb -> 0xa8e1!] dhcp6 renew (xid=50bedb (client-ID type 4) (server-ID hwaddr/time type 1 time 692127779 00259074ca68) (option-request DNS-server DNS-search-list DNS-server DNS-search-list client-ID) (elapsed-time 0) (Client-FQDN) (IA_NA IAID:795336567 T1:3600 T2:5400(IA_ADDR xxxx::101:1 pltime:7200 vltime:7500)) ) I have observed a case where KEA dhcp6 returns the following: 16:24:16.359170 IP6 (hlim 64, next-header UDP (17) payload length: 171) gateway.dhcpv6-server > cs-lab11-kea.dhcpv6-client: [udp sum ok] dhcp6 reply (xid=50bedb (client-ID type 4) (server-ID hwaddr/time type 1 time 692127779 00259074ca68) (IA_NA IAID:795336567 T1:40 T2:100 (IA_ADDR xxxx::101:1 pltime:120 vltime:120) (IA_ADDR xxxx::101:1 pltime:0 vltime:0)) (DNS-search-list cern.ch.) (Client-FQDN)) Where there are 2 IA_ADDR, the second one having a vltime of 0. Any idea how that can happen ? wireshark shows this: [...] Message type: Reply (7) Transaction ID: 0x52a6e8 Client Identifier Server Identifier Identity Association for Non-temporary Address Option: Identity Association for Non-temporary Address (3) Length: 68 xxx IAID: 2f67df77 T1: 40 T2: 100 IA Address Option: IA Address (5) Length: 24 Value: xxxx10100010000007800000078 IPv6 address: 2001:1458:202:1d5::101:1 (xxxx::101:1) Preferred lifetime: 120 Valid lifetime: 120 IA Address Option: IA Address (5) Length: 24 Value: xxxx10100010000000000000000 IPv6 address: 2001:1458:202:1d5::101:1 (xxxx::101:1) Preferred lifetime: 0 Valid lifetime: 0 Domain Search List Fully Qualified Domain Name Thanks, Veronique
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