Debian, o IPv6 não é assinado na interface

Question

Eu tenho um servidor Debian 7 com várias redes e VMs do KVM em execução:

• 2a01: 4f8: 191: 439b :: / 64
• 144.72.132.208/29

A sub-rede IPv6 é dividida em / 96 Networks para atribuir a cada ponte uma sub-rede própria.

auto hetzner0 iface hetzner0 inet static address 144.76.43.151 network 144.76.43.128 netmask 27 gateway 144.76.43.129 iface hetzner0 inet6 static address 2a01:4f8:191:439b:0:0:0:1 netmask 96 gateway fe80::1 auto hetzner1 iface hetzner1 inet static address 144.72.132.209 broadcast 144.72.132.208 netmask 29 bridge_ports none bridge_fd 1 bridge_waitport 0 bridge_stp off iface hetzner1 inet6 static address 2a01:4f8:191:439b:0:1:0:1 netmask 96


Enquanto o IPv4 está funcionando perfeitamente, o IPv6 está me deixando louco. O endereço v6 no hetzner0 é atribuído corretamente e eu sou capaz de pingar o mundo. Mas o endereço no hetzner1 não está sendo atribuído! Eu posso adicioná-lo manualmente, fazendo o seguinte:

/sbin/ip -f inet6 addr add 2a01:4f8:191:439b:0:1:0:1/96 dev hetzner1

Enquanto isso funciona, fazer isso em um gancho de post-up e pre-down não funciona ...

post-up /sbin/ip -f inet6 addr add 2a01:4f8:191:439b:0:1:0:1/96 dev hetzner1
pre-down  /sbin/ip -f inet6 addr add 2a01:4f8:191:439b:0:1:0:1/96 dev hetzner1

O IPv6 está habilitado para esta interface via sysctl, enquanto a configuração mais automática está desabilitada: ╰─$ sysctl -a | grep 'hetzner1' net.ipv4.conf.hetzner1.accept_local = 0 net.ipv4.conf.hetzner1.accept_redirects = 0 net.ipv4.conf.hetzner1.accept_source_route = 0 net.ipv4.conf.hetzner1.arp_accept = 0 net.ipv4.conf.hetzner1.arp_announce = 0 net.ipv4.conf.hetzner1.arp_filter = 0 net.ipv4.conf.hetzner1.arp_ignore = 0 net.ipv4.conf.hetzner1.arp_notify = 0 net.ipv4.conf.hetzner1.bootp_relay = 0 net.ipv4.conf.hetzner1.disable_policy = 0 net.ipv4.conf.hetzner1.disable_xfrm = 0 net.ipv4.conf.hetzner1.force_igmp_version = 0 net.ipv4.conf.hetzner1.forwarding = 1 net.ipv4.conf.hetzner1.igmpv2_unsolicited_report_interval = 10000 net.ipv4.conf.hetzner1.igmpv3_unsolicited_report_interval = 1000 net.ipv4.conf.hetzner1.log_martians = 0 net.ipv4.conf.hetzner1.mc_forwarding = 0 net.ipv4.conf.hetzner1.medium_id = 0 net.ipv4.conf.hetzner1.promote_secondaries = 0 net.ipv4.conf.hetzner1.proxy_arp = 0 net.ipv4.conf.hetzner1.proxy_arp_pvlan = 0 net.ipv4.conf.hetzner1.route_localnet = 0 net.ipv4.conf.hetzner1.rp_filter = 1 net.ipv4.conf.hetzner1.secure_redirects = 1 net.ipv4.conf.hetzner1.send_redirects = 0 net.ipv4.conf.hetzner1.shared_media = 1 net.ipv4.conf.hetzner1.src_valid_mark = 0 net.ipv4.conf.hetzner1.tag = 0 net.ipv4.neigh.hetzner1.anycast_delay = 100 net.ipv4.neigh.hetzner1.app_solicit = 0 net.ipv4.neigh.hetzner1.base_reachable_time_ms = 30000 net.ipv4.neigh.hetzner1.delay_first_probe_time = 5 net.ipv4.neigh.hetzner1.gc_stale_time = 60 net.ipv4.neigh.hetzner1.locktime = 100 net.ipv4.neigh.hetzner1.mcast_solicit = 3 net.ipv4.neigh.hetzner1.proxy_delay = 80 net.ipv4.neigh.hetzner1.proxy_qlen = 64 net.ipv4.neigh.hetzner1.retrans_time_ms = 1000 net.ipv4.neigh.hetzner1.ucast_solicit = 3 net.ipv4.neigh.hetzner1.unres_qlen = 31 net.ipv4.neigh.hetzner1.unres_qlen_bytes = 65536 net.ipv6.conf.hetzner1.accept_dad = 0 net.ipv6.conf.hetzner1.accept_ra = 0 net.ipv6.conf.hetzner1.accept_ra_defrtr = 0 net.ipv6.conf.hetzner1.accept_ra_pinfo = 0 net.ipv6.conf.hetzner1.accept_ra_rt_info_max_plen = 0 net.ipv6.conf.hetzner1.accept_ra_rtr_pref = 0 net.ipv6.conf.hetzner1.accept_redirects = 0 net.ipv6.conf.hetzner1.accept_source_route = 0 net.ipv6.conf.hetzner1.autoconf = 0 net.ipv6.conf.hetzner1.dad_transmits = 1 net.ipv6.conf.hetzner1.disable_ipv6 = 0 net.ipv6.conf.hetzner1.force_mld_version = 0 net.ipv6.conf.hetzner1.force_tllao = 0 net.ipv6.conf.hetzner1.forwarding = 1 net.ipv6.conf.hetzner1.hop_limit = 64 net.ipv6.conf.hetzner1.max_addresses = 16 net.ipv6.conf.hetzner1.max_desync_factor = 600 net.ipv6.conf.hetzner1.mc_forwarding = 0 net.ipv6.conf.hetzner1.mldv1_unsolicited_report_interval = 10000 net.ipv6.conf.hetzner1.mldv2_unsolicited_report_interval = 1000 net.ipv6.conf.hetzner1.mtu = 1500 net.ipv6.conf.hetzner1.ndisc_notify = 0 net.ipv6.conf.hetzner1.optimistic_dad = 0 net.ipv6.conf.hetzner1.proxy_ndp = 0 net.ipv6.conf.hetzner1.regen_max_retry = 3 net.ipv6.conf.hetzner1.router_probe_interval = 60 net.ipv6.conf.hetzner1.router_solicitation_delay = 1 net.ipv6.conf.hetzner1.router_solicitation_interval = 4 net.ipv6.conf.hetzner1.router_solicitations = 3 net.ipv6.conf.hetzner1.suppress_frag_ndisc = 1 net.ipv6.conf.hetzner1.temp_prefered_lft = 86400 net.ipv6.conf.hetzner1.temp_valid_lft = 604800 net.ipv6.conf.hetzner1.use_tempaddr = 0 net.ipv6.neigh.hetzner1.anycast_delay = 100 net.ipv6.neigh.hetzner1.app_solicit = 0 net.ipv6.neigh.hetzner1.base_reachable_time_ms = 30000 net.ipv6.neigh.hetzner1.delay_first_probe_time = 5 net.ipv6.neigh.hetzner1.gc_stale_time = 60 net.ipv6.neigh.hetzner1.locktime = 0 net.ipv6.neigh.hetzner1.mcast_solicit = 3 net.ipv6.neigh.hetzner1.proxy_delay = 80 net.ipv6.neigh.hetzner1.proxy_qlen = 64 net.ipv6.neigh.hetzner1.retrans_time_ms = 1000 net.ipv6.neigh.hetzner1.ucast_solicit = 3 net.ipv6.neigh.hetzner1.unres_qlen = 31 net.ipv6.neigh.hetzner1.unres_qlen_bytes = 65536

Estou desesperado, alguém tem uma solução para mim?

Victor

ATUALIZAÇÃO:

Estou com vergonha, mas enquanto eu estava clicando aleatoriamente através dos links do lado direito, procurando por um problema semelhante ao meu eu encontrei isso:

O IPv6 só funciona após o ping do gateway padrão.

As seguintes linhas chamaram minha atenção (sim, meu provedor é Hetzner Alemanha):

Because Debian is crazy for not already having that in there? – Michael Hampton♦ Feb 23 '13 at 9:29

The file was provided by hetzner: "### Hetzner Online AG - installimage" But it is definitely my fault, not seeing it in the first place :D. – dexstar Feb 23 '13 at 9:31

Então eu tentei a solução dele e finalmente funcionou! Eu adicionei a / etc / network / interfaces, enquanto a imagem de instalação do Hetzner não fornece isso:

iface lo inet6 loopback