Endless dhcpcd Router Advertisement messages
by kestralis from LinuxQuestions.org on (#4Z4RE)
While my network connection appears stable, for some reason dhcpcd appears to be reconfiguring every 2-10 minutes without stop in response to Router Advertisements. From /var/log/messages:
Code:...
Feb 10 01:07:16 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: RECONFIGURE6 from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: REPLY6 received from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: adding address 2600:6c67:467f:e831::100/128
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: renew in 216000, rebind in 345600, expire in 4294967295 seconds
Feb 10 01:09:02 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: RECONFIGURE6 from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: REPLY6 received from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: adding address 2600:6c67:467f:e831::100/128
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: renew in 216000, rebind in 345600, expire in 4294967295 seconds
Feb 10 01:12:00 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
...The route is (fortunately) never removed, but router advertisements and renewals keep coming despite having a long way to go before expiration.
I'm running dhcpcd 8.1.6 without NetworkManager with this /etc/dhcpcd.conf:
Code:controlgroup wheel
hostname
persistent
duid
option rapid_commit
#option domain_name_servers, domain_name, domain_search, host_name
option domain_name_servers, host_name
option classless_static_routes
#option ntp_servers
option interface_mtu
require dhcp_server_identifier
slaac private
nohook lookup-hostname
#nohook resolv.conf
#nohook wpa_supplicantMy router running OpenWRT is configured to be serve both RAs and DHCPv6 in "server" mode, with leases set to 12 hours by default. Any suggestions for what I can look at next?


Code:...
Feb 10 01:07:16 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: RECONFIGURE6 from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: REPLY6 received from fe80::6666:b3ff:fe9d:172a
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: adding address 2600:6c67:467f:e831::100/128
Feb 10 01:09:01 kestralis dhcpcd[1824]: eth0: renew in 216000, rebind in 345600, expire in 4294967295 seconds
Feb 10 01:09:02 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: RECONFIGURE6 from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: REPLY6 received from fe80::6666:b3ff:fe9d:172a
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: adding address 2600:6c67:467f:e831::100/128
Feb 10 01:11:59 kestralis dhcpcd[1824]: eth0: renew in 216000, rebind in 345600, expire in 4294967295 seconds
Feb 10 01:12:00 kestralis dhcpcd[1824]: eth0: Router Advertisement from fe80::6666:b3ff:fe9d:172a
...The route is (fortunately) never removed, but router advertisements and renewals keep coming despite having a long way to go before expiration.
I'm running dhcpcd 8.1.6 without NetworkManager with this /etc/dhcpcd.conf:
Code:controlgroup wheel
hostname
persistent
duid
option rapid_commit
#option domain_name_servers, domain_name, domain_search, host_name
option domain_name_servers, host_name
option classless_static_routes
#option ntp_servers
option interface_mtu
require dhcp_server_identifier
slaac private
nohook lookup-hostname
#nohook resolv.conf
#nohook wpa_supplicantMy router running OpenWRT is configured to be serve both RAs and DHCPv6 in "server" mode, with leases set to 12 hours by default. Any suggestions for what I can look at next?