Hello, I opened the title because I could not find much information on the subject.
PPPOE works without interruption, after 24 hours it loses ipv6-pd and is not renewed.
oot@R7800:~# tcpdump -i pppoe-wan -n -vv udp port 547
tcpdump: listening on pppoe-wan, link-type LINUX_SLL (Linux cooked v1), snapshot length 262144 bytes
04:41:26.525667 IP6 (flowlabel 0x188ec, hlim 1, next-header UDP (17) payload length: 137) fe80::dd96:a173:718e:575f.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=8aedc (elapsed-time 0) (option-request SIP-servers-domain SIP-servers-address DNS-server DNS-search-list SNTP-servers NTP-server AFTR-Name opt_67 opt_94 opt_95 opt_96 opt_82) (client-ID hwaddr type 1 b0b98a7357a0) (reconfigure-accept) (Client-FQDN) (IA_NA IAID:1 T1:0 T2:0) (IA_PD IAID:1 T1:0 T2:0 (IA_PD-prefix ::/64 pltime:0 vltime:0)))
04:41:26.544429 IP6 (flowlabel 0x1aef2, hlim 64, next-header UDP (17) payload length: 112) fe80::b098:7707:f2:67e1.547 > fe80::dd96:a173:718e:575f.546: [udp sum ok] dhcp6 advertise (xid=8aedc (client-ID hwaddr type 1 b0b98a7357a0) (server-ID hwaddr type 1 18fd747f43ae) (IA_NA IAID:1 T1:43200 T2:69120 (status-code NoAddrsAvail)) (preference 255) (IA_PD IAID:1 T1:43200 T2:69120 (IA_PD-prefix 2a03:hidden:little:monkey::/64 pltime:77760 vltime:86400)))
04:41:26.762722 IP6 (flowlabel 0x188ec, hlim 1, next-header UDP (17) payload length: 121) fe80::dd96:a173:718e:575f.546 > ff02::1:2.547: [udp sum ok] dhcp6 solicit (xid=4e8d4f (elapsed-time 0) (option-request SIP-servers-domain SIP-servers-address DNS-server DNS-search-list SNTP-servers NTP-server AFTR-Name opt_67 opt_94 opt_95 opt_96 opt_82) (client-ID hwaddr type 1 b0b98a7357a0) (reconfigure-accept) (Client-FQDN) (IA_PD IAID:1 T1:0 T2:0 (IA_PD-prefix ::/64 pltime:0 vltime:0)))
04:41:26.782383 IP6 (flowlabel 0x1aef2, hlim 64, next-header UDP (17) payload length: 90) fe80::b098:7707:f2:67e1.547 > fe80::dd96:a173:718e:575f.546: [udp sum ok] dhcp6 advertise (xid=4e8d4f (client-ID hwaddr type 1 b0b98a7357a0) (server-ID hwaddr type 1 18fd747f43ae) (preference 255) (IA_PD IAID:1 T1:43200 T2:69120 (IA_PD-prefix 2a03:hidden:little:monkey::/64 pltime:77760 vltime:86400)))
04:41:26.873453 IP6 (flowlabel 0x188ec, hlim 1, next-header UDP (17) payload length: 133) fe80::dd96:a173:718e:575f.546 > ff02::1:2.547: [udp sum ok] dhcp6 request (xid=4521ba (elapsed-time 0) (option-request SIP-servers-domain SIP-servers-address DNS-server DNS-search-list SNTP-servers NTP-server AFTR-Name opt_67 opt_94 opt_95 opt_96) (client-ID hwaddr type 1 b0b98a7357a0) (server-ID hwaddr type 1 18fd747f43ae) (reconfigure-accept) (Client-FQDN) (IA_PD IAID:1 T1:0 T2:0 (IA_PD-prefix 2a03:hidden:little:monkey::/64 pltime:77760 vltime:86400)))
04:41:26.892606 IP6 (flowlabel 0x1aef2, hlim 64, next-header UDP (17) payload length: 85) fe80::b098:7707:f2:67e1.547 > fe80::dd96:a173:718e:575f.546: [udp sum ok] dhcp6 reply (xid=4521ba (client-ID hwaddr type 1 b0b98a7357a0) (server-ID hwaddr type 1 18fd747f43ae) (IA_PD IAID:1 T1:43200 T2:69120 (IA_PD-prefix 2a03:hidden:little:monkey::/64 pltime:77760 vltime:86400)))
When I renew wan6, tcpdump is like this, vltime:86400 (24 hours), my question is why the router cannot renew the prefix time before this time expires.
Where can I get information.