Debian: setting static IPv6 address only fails

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I have a Debian 9 and I tried to configure an interface with a static IPv6 address only. I defined it in /etc/network/interfaces:



iface enp2s0 inet6 static
address fec0:0:0:5::254
netmask 64


But ifup fails:



# ifup enp2s0
Waiting for DAD... Timed out
ifup: failed to bring up enp2s0


What is wrong here? I have the same configuration on an interface which has also a IPv4 configuration. And it seems to work there. It does not throw an error.










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  • See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
    – Rui F Ribeiro
    3 mins ago










  • Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
    – Michael Hampton
    1 min ago















up vote
0
down vote

favorite












I have a Debian 9 and I tried to configure an interface with a static IPv6 address only. I defined it in /etc/network/interfaces:



iface enp2s0 inet6 static
address fec0:0:0:5::254
netmask 64


But ifup fails:



# ifup enp2s0
Waiting for DAD... Timed out
ifup: failed to bring up enp2s0


What is wrong here? I have the same configuration on an interface which has also a IPv4 configuration. And it seems to work there. It does not throw an error.










share|improve this question





















  • See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
    – Rui F Ribeiro
    3 mins ago










  • Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
    – Michael Hampton
    1 min ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have a Debian 9 and I tried to configure an interface with a static IPv6 address only. I defined it in /etc/network/interfaces:



iface enp2s0 inet6 static
address fec0:0:0:5::254
netmask 64


But ifup fails:



# ifup enp2s0
Waiting for DAD... Timed out
ifup: failed to bring up enp2s0


What is wrong here? I have the same configuration on an interface which has also a IPv4 configuration. And it seems to work there. It does not throw an error.










share|improve this question













I have a Debian 9 and I tried to configure an interface with a static IPv6 address only. I defined it in /etc/network/interfaces:



iface enp2s0 inet6 static
address fec0:0:0:5::254
netmask 64


But ifup fails:



# ifup enp2s0
Waiting for DAD... Timed out
ifup: failed to bring up enp2s0


What is wrong here? I have the same configuration on an interface which has also a IPv4 configuration. And it seems to work there. It does not throw an error.







debian ipv6






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asked 12 mins ago









ceving

1,69921321




1,69921321











  • See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
    – Rui F Ribeiro
    3 mins ago










  • Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
    – Michael Hampton
    1 min ago

















  • See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
    – Rui F Ribeiro
    3 mins ago










  • Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
    – Michael Hampton
    1 min ago
















See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
– Rui F Ribeiro
3 mins ago




See this agwa.name/blog/post/beware_the_ipv6_dad_race_condition
– Rui F Ribeiro
3 mins ago












Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
– Michael Hampton
1 min ago





Try using a valid IPv6 address. The range you are trying to use was deprecated 14 years ago. Use a ULA range instead.
– Michael Hampton
1 min ago
















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