| View previous topic :: View next topic |
| Author |
Message |
vlynd
Apprentice
Joined: 23 Jan 2012
Posts: 153
|
 Posted: Tue Nov 30, 2021 8:48 am Post subject: dhcpcd: no IPv6 Routers available |
 |
|
Since a few days, dhcpcd can't find a IPv6 route on my VServer. I don't know what caused this since it worked for years.
But since I'm using a professional hoster I suppose the error lies on my side.
This is my dhcpcd.conf:
| Code: |
hostname
duid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option interface_mtu
require dhcp_server_identifier
slaac private
#interface eth0
#noipv6rs
|
ifconfig:
| Code: |
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 88.99.169.1 netmask 255.255.255.255 broadcast 88.99.169.1
inet6 fe80::f0f2:23ce:b338:4799 prefixlen 64 scopeid 0x20<link>
ether 52:54:a2:01:c8:8d txqueuelen 1000 (Ethernet)
RX packets 44958 bytes 18601805 (17.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 46601 bytes 35767202 (34.1 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
|
netstat -rn6:
| Code: |
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
fe80::/64 :: U 256 1 0 enp0s3
::/0 :: !n -1 1 0 lo
::1/128 :: Un 0 4 0 lo
fe80::f0f2:23ce:b338:4799/128 :: Un 0 3 0 enp0s3
ff00::/8 :: U 256 3 0 enp0s3
::/0 :: !n -1 1 0 lo
|
Log:
| Code: |
Nov 30 09:41:04 hihn dhcpcd[10506]: dhcpcd-9.99.0 starting
Nov 30 09:41:04 hihn dhcpcd[10508]: dev: loaded udev
Nov 30 09:41:04 hihn dhcpcd[10508]: DUID 00:01:00:01:20:37:11:7a:52:54:a2:01:c8:8d
Nov 30 09:41:04 hihn dhcpcd[10508]: enp0s3: IAID a2:01:c8:8d
Nov 30 09:41:04 hihn dhcpcd[10508]: enp0s3: soliciting an IPv6 router
Nov 30 09:41:04 hihn dhcpcd[10508]: enp0s3: soliciting a DHCP lease
Nov 30 09:41:04 hihn dhcpcd[10508]: enp0s3: offered 88.99.169.1 from 172.31.1.1
Nov 30 09:41:05 hihn dhcpcd[10508]: enp0s3: probing address 88.99.169.1/32
Nov 30 09:41:10 hihn dhcpcd[10508]: enp0s3: leased 88.99.169.1 for 86400 seconds
Nov 30 09:41:10 hihn dhcpcd[10508]: enp0s3: adding host route to 172.31.1.1
Nov 30 09:41:10 hihn dhcpcd[10508]: enp0s3: adding default route via 172.31.1.1
Nov 30 09:41:10 hihn /etc/init.d/nginx[10538]: Call to flock failed: Resource temporarily unavailable
Nov 30 09:41:16 hihn dhcpcd[10508]: enp0s3: no IPv6 Routers available
|
Last edited by vlynd on Tue Nov 30, 2021 12:29 pm; edited 1 time in total |
|
| Back to top |
|
 |
Marlo
Veteran
Joined: 26 Jul 2003
Posts: 1591
|
| Posted: Tue Nov 30, 2021 12:27 pm Post subject: |
|
|
I am not a network expert and certainly not for ipv6. I just use it. That's why my question:
What exactly is the purpose of "noipv6rs"?
Ma
_________________
------------------------------------------------------------------
http://radio.garden/ |
|
| Back to top |
|
|
vlynd
Apprentice
Joined: 23 Jan 2012
Posts: 153
|
| Posted: Tue Nov 30, 2021 12:29 pm Post subject: |
|
|
| Marlo wrote: | I am not a network expert and certainly not for ipv6. I just use it. That's why my question:
What exactly is the purpose of "noipv6rs"?
Ma |
From the manpage:
| Quote: | noipv6rs
Don't solicit or accept IPv6 Router Advertisements.
|
|
|
| Back to top |
|
|
Marlo
Veteran
Joined: 26 Jul 2003
Posts: 1591
|
| Posted: Tue Nov 30, 2021 12:57 pm Post subject: |
|
|
When I asked my question, "noipv6rs" was not commented.
Just for clarification.
_________________
------------------------------------------------------------------
http://radio.garden/ |
|
| Back to top |
|
|
NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54237
Location: 56N 3W
|
| Posted: Tue Nov 30, 2021 1:00 pm Post subject: |
|
|
vlynd,
What does return?
Only routers should respond, so pick one.
If you have several Ethernet interfaces, you will need to add | Code: | | -I <interface_name> |
to the command.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
|
| Back to top |
|
|
vlynd
Apprentice
Joined: 23 Jan 2012
Posts: 153
|
| Posted: Tue Nov 30, 2021 2:39 pm Post subject: |
|
|
NeddySeagoon,
Your command returns:
| Code: |
# ping6 -c4 ff02::2
PING ff02::2(ff02::2) 56 data bytes
--- ff02::2 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3064ms
|
I got it working in two steps:
1) Set a static IPv6 address in dhcpcd.conf:
| Code: | | static ip6_address=2a01:4f8:c0c:2e8:0:b00b:dead:beef/64 |
2) Manually set a default IPv6 gateway:
| Code: | | ip -6 route add default via fe80::1 dev enp0s3 |
Nevertheless, I don't understand why I have to add the default route manually.
Shouldn't this be done by dhcpcd? |
|
| Back to top |
|
|
NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54237
Location: 56N 3W
|
| Posted: Tue Nov 30, 2021 3:40 pm Post subject: |
|
|
vlynd,
You need to read your providers fine print.
It should not be required.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
|
| Back to top |
|
|
UberLord
Retired Dev
Joined: 18 Sep 2003
Posts: 6835
Location: Blighty
|
|
| Back to top |
|
|
vlynd
Apprentice
Joined: 23 Jan 2012
Posts: 153
|
| Posted: Tue Nov 30, 2021 8:25 pm Post subject: |
|
|
| UberLord wrote: | You're using a development branch of dhcpcd from git.
Can you try using dhcpcd-9.4.1 or 9.4.0 please? It might be a regression. |
Also tried it with 9.4.1 before but had the same issues.
Updated to the live ebuild because I thought this issue might be the cause.
However, I fixed my problem by going back to using netifrc. That way, I can set a static ipv6 route via /etc/conf.d/net. |
|
| Back to top |
|
|
UberLord
Retired Dev
Joined: 18 Sep 2003
Posts: 6835
Location: Blighty
|
|
| Back to top |
|
|
|
Networking & Security
