Go to Qiita Advent Calendar 2024 Top
LoginSignup
6
1

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

@wutai00(wutai araragi)

(初心者むけ) asahi-net にてNEC IX2215 を使って IPoE DS-Lite する

Last updated at Posted at 2023-03-22

初歩レベル、かんたんな手順メモ

これまでAterm WG1200HP4でDS-Liteしていたのですが、同時セッション300あたりで性能上限に達し、DNS解決機能が停止し、ルータにログインもできなくなってました。

なのでヤフオクで、２台で五千円のやつを買ってみることにしてみました。

大前提

「ONUとひかり電話ルータ」が合体した機材の、LANポート以下にIX2015を接続するシナリオです。

LAN側は、ポートが沢山使える GE2 を使うことにします。

よくある落とし穴

情報収集でありがちな罠は、「ひかり電話アリとナシ、どちらのconfigを選べばいいの？」という部分です。

結論から言うと

  • ひかり電話を契約していない　→ひかり電話ナシconfig
  • 「ONUとひかり電話ルータの合体機材」なら、ひかり電話契約の有無に関わらず、ひかり電話ナシconfig
  • ひかり電話を契約し、「ONU単機能モデル（Bフレッツ時代のやつとか）」直下に直接IXをつなぐなら、ひかり電話アリconfig

になるという。一般家庭なら２番目ですね。

firmを最新に上げる

時間をドブに捨てないために、必ずfirmwareを 10.7まで上げましょう。

この申請書を書いてメールするだけで、すぐにdownload ID が貰えます。

どうやってfirmを上げるの？

webuiを有効化して、ブラウザ経由で上げるのが一番簡単かな・・

# conf t
http-server ip enable
http-server username admin

conf

# sh run
! NEC Portable Internetwork Core Operating System Software
! IX Series IX2215 (magellan-sec) Software, Version 10.7.18, RELEASE SOFTWARE
! Compiled Oct 25-Tue-2022 12:37:13 JST #2
! Current time Mar 22-Wed-2023 11:59:17 JST
!
hostname gate
timezone +09 00
!
!
!
ip ufs-cache max-entries 20000
ip ufs-cache enable
ip route default Tunnel0.0
ip dhcp enable
!
!
ipv6 ufs-cache max-entries 10000
ipv6 ufs-cache enable
ipv6 dhcp enable
ipv6 access-list block-list deny ip src any dest any
ipv6 access-list dhcpv6-list permit udp src any sport any dest any dport eq 546
ipv6 access-list dhcpv6-list permit udp src any sport any dest any dport eq 547
ipv6 access-list icmpv6-list permit icmp src any dest any
ipv6 access-list permit-list permit ip src any dest any
ipv6 access-list dynamic cache 65535
ipv6 access-list dynamic dflt-list access permit-list
!
!
!
!
no dns fqdn-database roundrobin
!
proxy-dns ip enable
proxy-dns ip request both
!
telnet-server ip enable
!
http-server username admin
http-server ip enable
!
!
!
!
ip dhcp profile dhcpv4-sv
  dns-server 192.168.10.1
!
ipv6 dhcp client-profile dhcpv6-cl
  information-request
  option-request dns-servers
!
ipv6 dhcp server-profile dhcpv6-sv
  dns-server dhcp
!
interface GigaEthernet0.0
  description FletsNet
  no ip address
  ipv6 enable
  ipv6 dhcp client dhcpv6-cl
  ipv6 nd proxy GigaEthernet2.0
  ipv6 filter dhcpv6-list 1 in
  ipv6 filter icmpv6-list 2 in
  ipv6 filter block-list 100 in
  ipv6 filter dhcpv6-list 1 out
  ipv6 filter icmpv6-list 2 out
  ipv6 filter dflt-list 100 out
  no shutdown
!
interface GigaEthernet1.0
  no ip address
  shutdown
!
interface GigaEthernet2.0
  description HomeNet
  ip address 192.168.10.1/24
  ip dhcp binding dhcpv4-sv
  ipv6 enable
  ipv6 dhcp server dhcpv6-sv
  ipv6 nd ra enable
  ipv6 nd ra other-config-flag
  no shutdown
!
interface Tunnel0.0
  description dslite.v6connect.net
  tunnel mode 4-over-6
  tunnel destination fqdn dslite.v6connect.net
  tunnel source GigaEthernet2.0
  ip unnumbered GigaEthernet2.0
  ip tcp adjust-mss auto
  no shutdown
!

動作確認

ix.jpg

IPoE周りの確認

まず全てはNDから始まります。NDが動いているか確認。それからRA をもらっているか確認

yn-gate(config)# sh ipv6 neighbors GigaEthernet0.0
Neighbor cache - 11 dynamic, 1013 free, 0 static
Interface GigaEthernet0.0 is up, line protocol is up
  Neighbor 2405:6583:***:***:3ae0:8eff:fe5a:e0a6 (router)
    REACHABLE, linklayer 38:e0:8e:5a:e0:a6, uptime 0:00:00, age 42d9h59m40s
  Neighbor fe80::3ae0:8eff:fe5a:e0a6 (router)
    REACHABLE, linklayer 38:e0:8e:5a:e0:a6, uptime 0:00:09, age 42d9h59m40s

yn-gate(config)# sh ipv6 routers
Interface GigaEthernet0.0 is up, line protocol is up
  Router fe80::3ae0:8eff:fe5a:e0a6, uptime 0:22:21 seconds
    Hops 64, lifetime 5400 seconds, MTU 0, other
    Reachable time 30 seconds, retransmit time 1 seconds
    Prefix 2405:6583:****:****::/64, on-link, autonomous

RAを元に、自分のIPv6が決定されたか確認

yn-gate(config)# sh ipv6 prefix
Interface GigaEthernet2.0 is up, line protocol is up
  Advertising prefix is auto-prefix11:
    2405:6583:*****:***:: prefixlen 64
    Valid life time 2592000 seconds
    Preferred life time 604800 seconds
    On-link flag is on
    Autonomous flag is on

yn-gate(config)# sh ipv6 address
Interface GigaEthernet0.0 is up, line protocol is up
  Link-local address(es):
    fe80::260:b9ff:fef9:5312 prefixlen 64
    fe80:: prefixlen 64 anycast
  Multicast address(es):
    ff02::1
    ff02::2
    ff02::1:2
    ff02::1:ff00:0
    ff02::1:fff9:5312
Interface GigaEthernet2.0 is up, line protocol is up
  Global address(es):
    2405:6583:6640:***:260:b9ff:fef9:5352 prefixlen 64
    2405:6583:6640:***:: prefixlen 64 anycast
  Link-local address(es):
    fe80::260:b9ff:fef9:5352 prefixlen 64
    fe80:: prefixlen 64 anycast
  Multicast address(es):
    ff02::1
    ff02::2
    ff02::1:2
    ff02::1:ff00:0
    ff02::1:fff9:5312
Interface GigaEthernet2.0 is up, line protocol is up
  Global address(es):
    2405:6583:6640:***:260:b9ff:fef9:5352 prefixlen 64
    2405:6583:6640:***:: prefixlen 64 anycast
  Link-local address(es):
    fe80::260:b9ff:fef9:5352 prefixlen 64
    fe80:: prefixlen 64 anycast
  Multicast address(es):
    ff02::1
    ff02::2
    ff02::1:2
    ff02::1:ff00:0
    ff02::1:fff9:5352
Interface Loopback0.0 is up, line protocol is up
  Orphan address(es):
    ::1 prefixlen 128

NDを元に、デフォルトゲートウェイが設定されたか確認

yn-gate(config)# sh ipv6 route
IPv6 Routing Table - 4 entries, unlimited
Codes: C - Connected, L - Local, S - Static
       R - RIPng, O - OSPF, IA - OSPF inter area
       E1 - OSPF external type 1, E2 - OSPF external type 2, B - BGP
       s - Summary
Timers: Uptime/Age
S      ::/0 orphan [100/1]
         via fe80::3ae0:8eff:fe5a:e0a6, GigaEthernet0.0, 42d10h/0:00:00
C      2405:6583:***:***::/64 global [0/1]
         via ::, GigaEthernet2.0, 42d9h59m59s/0:00:00
L      2405:6583:***:***::/128 global [0/1]
         via ::, GigaEthernet2.0, 42d10h/0:00:00
L      2405:6583:***:***:260:b9ff:fef9:5352/128 global [0/1]
         via ::, GigaEthernet2.0, 42d9h59m59s/0:00:00

DHCPv6で、DNSサーバーアドレスを受け取っているか確認

yn-gate(config)#sh ipv6 dhcp client
DHCPv6 client is enabled
  System DUID 00:03:00:01:00:60:b9:f9:53:12
  Statistics:
    Information request-reply:
      5 send, 3664581 seconds ago
      1 receive, 0 drops, 3664581 seconds ago
    Reconfigure:
      1 receive, 1 drops, 3664581 seconds ago
Interface GigaEthernet0.0 is active
  Server address fe80::3ae0:8eff:fe5a:e0a6
  Server identifier 00:03:00:01:38:e0:8e:5a:e0:a6
  Uptime 42d9h56m27s
  DNS Servers:
    2405:6583:6640:100:3ae0:8eff:fe5a:e0a6
  Statistics:
    Information request-reply:
      5 send, 3664581 seconds ago
      1 receive, 0 drops, 3664581 seconds ago
    Reconfigure:
      1 receive, 1 drops, 3664581 seconds ago
yn-gate(config)#

DS-Lite回りの確認

トンネルの存在を確認

yn-gate(config)# sh interfaces brief
Interface GigaEthernet0.0 is up
  IPv6 subsystem connected, physical layer is up, 0:29:27
Interface GigaEthernet2.0 is up
  IPv4 subsystem connected, physical layer is up, 0:29:40
  ARP subsystem connected, physical layer is up, 0:29:40
  IPv6 subsystem connected, physical layer is up, 0:29:40
Interface Tunnel0.0 is up
  IPv4 subsystem connected, physical layer is up, 0:28:49

トンネル状態が「Tunnel is ready」かを確認。

yn-gate(config)# sh interfaces Tunnel0.0
Interface Tunnel0.0 is up
  Description: dslite.v6connect.net
  Fundamental MTU is 1460 octets
  Current bandwidth 1G b/s, QoS is disabled
  Datalink header cache type is ipv6-tunnel: 1/0 (standby/dynamic)
  IPv4 subsystem connected, physical layer is up, 0:32:55
  Dialer auto-connect is enabled
  Inbound call is enabled
  Outbound call is enabled
  Dial on demand restraint is disabled, 0 disconnect
  SNMP MIB-2:
    ifIndex is 1208
  Logical INTERFACE:
    Elapsed time after clear counters 0:33:55
    132750 packets input, 179432696 bytes, 0 errors
      132750 unicasts, 0 non-unicasts, 0 unknown protos
      0 drops, 0 misc errors
    88448 output requests, 19580385 bytes, 0 errors
      88448 unicasts, 0 non-unicasts
      0 overflows, 0 neighbor unreachable, 0 misc errors
    1 link-up detected, 0 link-down detected
  Encapsulation TUNNEL:
    Tunnel mode is 4-over-6
    Tunnel is ready
    Destination address is 2001:c28:1:301::11
    Destination FQDN is dslite.v6connect.net
    Source address is 2405:6583:6666:6666:2666b9ff:6666:5392
    Source interface GigaEthernet2.0
    Nexthop address is fe80::3ae0:8eff:fe5a:e0a6
    Outgoing interface is GigaEthernet0.0
    Interface MTU is 1460
    Path MTU is 1500
    Tunnel-link cache:
      38:e0:8e:5a:e0:a6:00:60:b9:f9:53:12:86:dd
    Statistics:
      132761 packets input, 179434513 bytes, 0 errors
      88458 packets output, 19582225 bytes, 0 errors
    Received ICMP messages:
      0 errors

できました！

fastcom.jpg

備考：PPPoEパススルーをやりたい場合

bridge irb enable
bridge 1 bridge-only pppoe

interface GigaEthernet0.0
  bridge-group 1
interface GigaEthernet2.0
  bridge-group 1

小ネタ

6
1
3

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
Sign upLogin
6
1

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?