Configure IPv6 on Debian 9

Help set up IPv6 on Deban 9
My IPv6 confuration don't work:

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).



source /etc/network/interfaces.d/*



# The loopback network interface

auto lo

iface lo inet loopback



# The primary network interface

allow-hotplug ens3

iface ens3 inet static

        address 217.182.53.46/24

        gateway 217.182.53.254

        # dns-* options are implemented by the resolvconf package, if installed

        dns-nameservers 8.8.8.8 77.88.8.8

        dns-search 8.8.8.8



iface ens3 inet6 static

        address 2001:41d0:2:fa3e::2/64

        netmask 64

        gateway 2001:41d0:2:faff:ff:ff:ff:ff

How fix it?

IPv6: 2001:41d0:2:fa3e::2/64

GW: 2001:41d0:2:faff:ff:ff:ff:ff

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

add a comment |

Help set up IPv6 on Deban 9
My IPv6 confuration don't work:

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).



source /etc/network/interfaces.d/*



# The loopback network interface

auto lo

iface lo inet loopback



# The primary network interface

allow-hotplug ens3

iface ens3 inet static

        address 217.182.53.46/24

        gateway 217.182.53.254

        # dns-* options are implemented by the resolvconf package, if installed

        dns-nameservers 8.8.8.8 77.88.8.8

        dns-search 8.8.8.8



iface ens3 inet6 static

        address 2001:41d0:2:fa3e::2/64

        netmask 64

        gateway 2001:41d0:2:faff:ff:ff:ff:ff

How fix it?

IPv6: 2001:41d0:2:fa3e::2/64

GW: 2001:41d0:2:faff:ff:ff:ff:ff

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

add a comment |

Help set up IPv6 on Deban 9
My IPv6 confuration don't work:

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).



source /etc/network/interfaces.d/*



# The loopback network interface

auto lo

iface lo inet loopback



# The primary network interface

allow-hotplug ens3

iface ens3 inet static

        address 217.182.53.46/24

        gateway 217.182.53.254

        # dns-* options are implemented by the resolvconf package, if installed

        dns-nameservers 8.8.8.8 77.88.8.8

        dns-search 8.8.8.8



iface ens3 inet6 static

        address 2001:41d0:2:fa3e::2/64

        netmask 64

        gateway 2001:41d0:2:faff:ff:ff:ff:ff

How fix it?

IPv6: 2001:41d0:2:fa3e::2/64

GW: 2001:41d0:2:faff:ff:ff:ff:ff

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

Help set up IPv6 on Deban 9
My IPv6 confuration don't work:

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).



source /etc/network/interfaces.d/*



# The loopback network interface

auto lo

iface lo inet loopback



# The primary network interface

allow-hotplug ens3

iface ens3 inet static

        address 217.182.53.46/24

        gateway 217.182.53.254

        # dns-* options are implemented by the resolvconf package, if installed

        dns-nameservers 8.8.8.8 77.88.8.8

        dns-search 8.8.8.8



iface ens3 inet6 static

        address 2001:41d0:2:fa3e::2/64

        netmask 64

        gateway 2001:41d0:2:faff:ff:ff:ff:ff

How fix it?

IPv6: 2001:41d0:2:fa3e::2/64

GW: 2001:41d0:2:faff:ff:ff:ff:ff

linux debian ipv6

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

edited Jan 25 at 14:02

asked Jan 25 at 10:00

J.Doe

asked Jan 25 at 10:00

J.Doe

asked Jan 25 at 10:00

J.Doe

add a comment |

2 Answers
2

active

oldest

votes

There is an error in your configuration. Your gateway is not within your subnet range.

The range for subnet 2001:41d0:2:fa3e::/64 is 2001:41d0:0002:fa3e:0000:0000:0000:0000 - 2001:41d0:0002:fa3e:ffff:ffff:ffff:ffff. However, 2001:41d0:2:faff:ff:ff:ff:ff falls outside that range.

An example of a working config:

iface eth0 inet6 static

address 2001:db8:7927::61

netmask 64

gateway 2001:db8:7927::1

An additional problem could be that you configured an IPv4 address on ens3 and the IPv6 address on eth0. This might be intentional, but something that could easily be missed.

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

1

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

add a comment |

The OVH help document for IPv6 explains that you need to add static routes for your IPv6 gateway, because it is outside the IPv6 subnet allocated to your server.

So your interfaces file should contain, in relevant part:

iface ens3 inet6 static 

    address 2001:41d0:2:fa3e::2

    netmask 128



post-up /sbin/ip -f inet6 route add 2001:41d0:2:faff:ff:ff:ff:ff dev ens3 

post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:faff:ff:ff:ff:ff 

pre-down /sbin/ip -f inet6 route del 2001:41d0:2:faff:ff:ff:ff:ff dev ens3

pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:faff:ff:ff:ff:ff

answered Jan 25 at 16:29

Michael Hampton

11k33368

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

There is an error in your configuration. Your gateway is not within your subnet range.

An example of a working config:

iface eth0 inet6 static

address 2001:db8:7927::61

netmask 64

gateway 2001:db8:7927::1

An additional problem could be that you configured an IPv4 address on ens3 and the IPv6 address on eth0. This might be intentional, but something that could easily be missed.

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

1

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

add a comment |

There is an error in your configuration. Your gateway is not within your subnet range.

An example of a working config:

iface eth0 inet6 static

address 2001:db8:7927::61

netmask 64

gateway 2001:db8:7927::1

An additional problem could be that you configured an IPv4 address on ens3 and the IPv6 address on eth0. This might be intentional, but something that could easily be missed.

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

1

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

add a comment |

There is an error in your configuration. Your gateway is not within your subnet range.

An example of a working config:

iface eth0 inet6 static

address 2001:db8:7927::61

netmask 64

gateway 2001:db8:7927::1

An additional problem could be that you configured an IPv4 address on ens3 and the IPv6 address on eth0. This might be intentional, but something that could easily be missed.

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

There is an error in your configuration. Your gateway is not within your subnet range.

An example of a working config:

iface eth0 inet6 static

address 2001:db8:7927::61

netmask 64

gateway 2001:db8:7927::1

An additional problem could be that you configured an IPv4 address on ens3 and the IPv6 address on eth0. This might be intentional, but something that could easily be missed.

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

edited Jan 25 at 10:35

answered Jan 25 at 10:19

mtak

11.1k23353

answered Jan 25 at 10:19

mtak

11.1k23353

answered Jan 25 at 10:19

mtak

11.1k23353

1

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

add a comment |

1

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

While unusual, it's not technically impossible for the gateway to be off-subnet – and several server hosting companies actually do that.

– grawity
Jan 25 at 10:44

add a comment |

The OVH help document for IPv6 explains that you need to add static routes for your IPv6 gateway, because it is outside the IPv6 subnet allocated to your server.

So your interfaces file should contain, in relevant part:

iface ens3 inet6 static 

    address 2001:41d0:2:fa3e::2

    netmask 128



post-up /sbin/ip -f inet6 route add 2001:41d0:2:faff:ff:ff:ff:ff dev ens3 

post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:faff:ff:ff:ff:ff 

pre-down /sbin/ip -f inet6 route del 2001:41d0:2:faff:ff:ff:ff:ff dev ens3

pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:faff:ff:ff:ff:ff

answered Jan 25 at 16:29

Michael Hampton

11k33368

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

add a comment |

The OVH help document for IPv6 explains that you need to add static routes for your IPv6 gateway, because it is outside the IPv6 subnet allocated to your server.

So your interfaces file should contain, in relevant part:

iface ens3 inet6 static 

    address 2001:41d0:2:fa3e::2

    netmask 128



post-up /sbin/ip -f inet6 route add 2001:41d0:2:faff:ff:ff:ff:ff dev ens3 

post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:faff:ff:ff:ff:ff 

pre-down /sbin/ip -f inet6 route del 2001:41d0:2:faff:ff:ff:ff:ff dev ens3

pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:faff:ff:ff:ff:ff

answered Jan 25 at 16:29

Michael Hampton

11k33368

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

add a comment |

The OVH help document for IPv6 explains that you need to add static routes for your IPv6 gateway, because it is outside the IPv6 subnet allocated to your server.

So your interfaces file should contain, in relevant part:

iface ens3 inet6 static 

    address 2001:41d0:2:fa3e::2

    netmask 128



post-up /sbin/ip -f inet6 route add 2001:41d0:2:faff:ff:ff:ff:ff dev ens3 

post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:faff:ff:ff:ff:ff 

pre-down /sbin/ip -f inet6 route del 2001:41d0:2:faff:ff:ff:ff:ff dev ens3

pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:faff:ff:ff:ff:ff

answered Jan 25 at 16:29

Michael Hampton

11k33368

The OVH help document for IPv6 explains that you need to add static routes for your IPv6 gateway, because it is outside the IPv6 subnet allocated to your server.

So your interfaces file should contain, in relevant part:

iface ens3 inet6 static 

    address 2001:41d0:2:fa3e::2

    netmask 128



post-up /sbin/ip -f inet6 route add 2001:41d0:2:faff:ff:ff:ff:ff dev ens3 

post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:faff:ff:ff:ff:ff 

pre-down /sbin/ip -f inet6 route del 2001:41d0:2:faff:ff:ff:ff:ff dev ens3

pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:faff:ff:ff:ff:ff

answered Jan 25 at 16:29

Michael Hampton

11k33368

answered Jan 25 at 16:29

Michael Hampton

11k33368

answered Jan 25 at 16:29

Michael Hampton

11k33368

answered Jan 25 at 16:29

Michael Hampton

11k33368

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

add a comment |

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

Yes. The correct manual

– J.Doe
Jan 31 at 23:22

add a comment |

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