Cannot assign additional IPv6 addresses to Debian Jessie server

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I've got a /64 IPv6 subnet and I'd like to use additional v6 addresses now.
=> /etc/network/interfaces:



iface ens18 inet6 static
 address asdf:asdf:asdf:asdf::1
 netmask 64
 gateway fe80::1
 accept_ra 0
 autoconf 0
 privext 0
 dns-nameservers ::1 xxxx:xxxx::1:53 xxxx:xxxx:2:53

iface ens18 inet6 static
 address asdf:asdf:asdf:asdf::2
 netmask 64

iface ens18 inet6 static
 address asdf:asdf:asdf:asdf::3
 netmask 64


However, as soon as I add asdf:asdf:asdf:asdf::2 and/or asdf:asdf:asdf:asdf::3, I cannot ping any other IPv6 address.

When I remove these blocks and reboot, I can use IPv6 again.



# ip addr show ens18
2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
 link/ether [...] brd ff:ff:ff:ff:ff:ff
 inet [...]/24 brd 79.143.178.255 scope global ens18
 valid_lft forever preferred_lft forever
 inet6 asdf:asdf:asdf:asdf::1/64 scope global 
 valid_lft forever preferred_lft forever
 inet6 fe80::[...]/64 scope link 
 valid_lft forever preferred_lft forever
# ip -6 route
asdf:asdf:asdf:asdf::/64 dev ens18 proto kernel metric 256 pref medium
fe80::/64 dev ens18 proto kernel metric 256 pref medium
default via fe80::1 dev ens18 metric 1024 pref medium


What is the problem here?






debian ipv6







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    up vote
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    down vote

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    I've got a /64 IPv6 subnet and I'd like to use additional v6 addresses now.
    => /etc/network/interfaces:



    iface ens18 inet6 static
     address asdf:asdf:asdf:asdf::1
     netmask 64
     gateway fe80::1
     accept_ra 0
     autoconf 0
     privext 0
     dns-nameservers ::1 xxxx:xxxx::1:53 xxxx:xxxx:2:53

    iface ens18 inet6 static
     address asdf:asdf:asdf:asdf::2
     netmask 64

    iface ens18 inet6 static
     address asdf:asdf:asdf:asdf::3
     netmask 64


    However, as soon as I add asdf:asdf:asdf:asdf::2 and/or asdf:asdf:asdf:asdf::3, I cannot ping any other IPv6 address.

    When I remove these blocks and reboot, I can use IPv6 again.



    # ip addr show ens18
    2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
     link/ether [...] brd ff:ff:ff:ff:ff:ff
     inet [...]/24 brd 79.143.178.255 scope global ens18
     valid_lft forever preferred_lft forever
     inet6 asdf:asdf:asdf:asdf::1/64 scope global 
     valid_lft forever preferred_lft forever
     inet6 fe80::[...]/64 scope link 
     valid_lft forever preferred_lft forever
    # ip -6 route
    asdf:asdf:asdf:asdf::/64 dev ens18 proto kernel metric 256 pref medium
    fe80::/64 dev ens18 proto kernel metric 256 pref medium
    default via fe80::1 dev ens18 metric 1024 pref medium


    What is the problem here?






    debian ipv6







    share|improve this question







    New contributor




    Hoeze is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I've got a /64 IPv6 subnet and I'd like to use additional v6 addresses now.
      => /etc/network/interfaces:



      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::1
       netmask 64
       gateway fe80::1
       accept_ra 0
       autoconf 0
       privext 0
       dns-nameservers ::1 xxxx:xxxx::1:53 xxxx:xxxx:2:53

      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::2
       netmask 64

      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::3
       netmask 64


      However, as soon as I add asdf:asdf:asdf:asdf::2 and/or asdf:asdf:asdf:asdf::3, I cannot ping any other IPv6 address.

      When I remove these blocks and reboot, I can use IPv6 again.



      # ip addr show ens18
      2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
       link/ether [...] brd ff:ff:ff:ff:ff:ff
       inet [...]/24 brd 79.143.178.255 scope global ens18
       valid_lft forever preferred_lft forever
       inet6 asdf:asdf:asdf:asdf::1/64 scope global 
       valid_lft forever preferred_lft forever
       inet6 fe80::[...]/64 scope link 
       valid_lft forever preferred_lft forever
      # ip -6 route
      asdf:asdf:asdf:asdf::/64 dev ens18 proto kernel metric 256 pref medium
      fe80::/64 dev ens18 proto kernel metric 256 pref medium
      default via fe80::1 dev ens18 metric 1024 pref medium


      What is the problem here?






      debian ipv6







      share|improve this question







      New contributor




      Hoeze is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I've got a /64 IPv6 subnet and I'd like to use additional v6 addresses now.
      => /etc/network/interfaces:



      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::1
       netmask 64
       gateway fe80::1
       accept_ra 0
       autoconf 0
       privext 0
       dns-nameservers ::1 xxxx:xxxx::1:53 xxxx:xxxx:2:53

      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::2
       netmask 64

      iface ens18 inet6 static
       address asdf:asdf:asdf:asdf::3
       netmask 64


      However, as soon as I add asdf:asdf:asdf:asdf::2 and/or asdf:asdf:asdf:asdf::3, I cannot ping any other IPv6 address.

      When I remove these blocks and reboot, I can use IPv6 again.



      # ip addr show ens18
      2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
       link/ether [...] brd ff:ff:ff:ff:ff:ff
       inet [...]/24 brd 79.143.178.255 scope global ens18
       valid_lft forever preferred_lft forever
       inet6 asdf:asdf:asdf:asdf::1/64 scope global 
       valid_lft forever preferred_lft forever
       inet6 fe80::[...]/64 scope link 
       valid_lft forever preferred_lft forever
      # ip -6 route
      asdf:asdf:asdf:asdf::/64 dev ens18 proto kernel metric 256 pref medium
      fe80::/64 dev ens18 proto kernel metric 256 pref medium
      default via fe80::1 dev ens18 metric 1024 pref medium


      What is the problem here?






      debian ipv6




      debian ipv6






      share|improve this question







      New contributor




      Hoeze is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      Hoeze is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






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