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2013-02-27

NEC Aterm WR8165N をブリッジモードで運用する際、DHCP で ip届けてくれないから調べてみた

| 21:15

NEC AtermWR8165N(STモデル) PA-WR8165N-ST
NEC (2012-10-12)
売り上げランキング: 953

↑この子が糞調子悪くて日常生活に支障が出てます(割とマジで)*1



我が家には既に dhcpサーバー を兼ねたブロードバンドルータとして NetGenesis SuperOPT100E が稼働しています。 故に、wifiルータとしてではなく "wifiブリッジ" として運用すべく、ブリッジモードで運用しているのですけども……

Android 端末の WIFI を ON にしても、中々ipが届かず接続出来ない状態に陥り非常に困っています。



よって「TCP第三層だよね?」とか日々思っている程度にネットワークに超弱い私が、原因追及をし始めるわけでした。


結論

WR8165N が DHCPパケットを返してくれてない様子。 …っていうか、ブロードキャストパケットが飛んでない感じなんですけお…………(?)


環境とか

環境とか色々調査した結果は以下の通り

  • ブリッジモードで運用
  • すぐにipくれることもあるが、ウン十回 WIFI を ON/OFF を繰り返さないと届かないことの方が多い → 超面倒臭い…
  • WPA2-PSK(AES) 接続
    • キーは25文字ぐらい
  • 電波強度は Android端末でも 窓端末でも「バリバリ」。端末から3メートルも離れてない程度
  • シングルチャンネル運用でもデュアルチャンネル運用でも症状は変わらない
  • ファームは 1.0.5
  • 中々ipが取得できなかった端末は以下の通り
  • Buffalo の WHR-G54S を 11g WEP で運用していた際は全く問題無かった

http://ir9.jp/hd13/0227_00.png
svg 画像も用意


大丈夫なこと

  • (今まで利用していた)バッファローの AirStation WHR-G54S を有線で WR8165N に接続して、そのアクセスポイントにWIFI (WPA-PSK-AES) でアクセスした場合は、10秒ほどで問題なく dhcp により ip が割り当てられる。
  • そのネットワークの状態で、WHR-G54S に有線でノートPCをつなぐと問題なく dhcp により ip が割り当てられる。

すなわち、WR8165N の有線ポートには問題が無い事が確認取れています。


調査1 - とりあえずキャプチャ

ひとまずWIFIパケットキャプチャをしようと、wireshark を導入。 これで、wifiで飛んでるパケットをキャプチャ出来る…の……? …と思ったら、案の定 Windows 上にあるNICデバイスのキャプチャしか出来なくて凹む(ぉ …とはいえ、窓上でも ipくれない状況には変わりないのでキャプチャしてみました


結果はこんな感じ。

  • 関係なさそうなプロトコルは省略
  • Discoverが連続し後に Release してるのは「あぁこりゃまた反応無いな…」と判断して wifi切断してます (そしてまた再度接続をtry)
No.TimeSourceDestinationProtocolInfo
10NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
20.701216Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
30.704683NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
40.704747Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
51.704625NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
61.705245Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
72.8050650.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x95ef9b78
86.8052330.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x95ef9b78
914.8051790.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x95ef9b78
1030.8049870.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x95ef9b78
1148.3007780.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0xe13ccfe4
1252.1665240.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x547dc79d
1352.169059NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
1452.841769Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
1552.84513NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
1652.845172Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
1753.844028NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
1853.844268Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
1957.1660010.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x547dc79d
2066.1659060.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x547dc79d
2182.1658090.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x547dc79d
30117.633942192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x547dc79d
32117.643551192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x547dc79d
40122.6647730.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xa22ed027
41122.666238NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
42123.33944Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
43123.342948NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
44123.342979Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
45124.374408NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
46124.374924Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
47126.6643340.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xa22ed027
48134.6642490.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xa22ed027
49150.6640840.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xa22ed027
50163.372740.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0xf5a5149e
51167.0221590.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x1d89e7ec
52167.024129NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
53167.695402Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
54167.699223NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
55167.699286Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
56168.702862NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
57168.703473Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
58171.0222980.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x1d89e7ec
59179.0221670.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x1d89e7ec
60195.0220090.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x1d89e7ec
61206.5179890.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0x23e2840d
62208.9691720.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x4a37861c
63208.971572NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
64209.639418Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
65209.642692NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
66209.642765Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
67210.642437NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
68210.643033Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
69213.9690240.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x4a37861c
70222.9689440.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x4a37861c
71237.9687870.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x4a37861c
72249.9167890.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0x47c3126b
73254.0254140.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd8b56640
74254.026156NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
75254.703654Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
76254.707052NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
77254.707094Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
78255.701964NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
79255.702594Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
80258.0251390.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd8b56640
81267.0251190.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd8b56640
82282.024960.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd8b56640
90324.0186260.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x2917bb2c
91324.020842NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
92324.70455Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
93324.707951NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
94324.708021Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
95325.711209NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
96325.711862Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
97328.0186440.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x2917bb2c
98337.0185360.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x2917bb2c
99353.0183780.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x2917bb2c
100361.1122930.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0xdb165e62
101365.2572010.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x649f01a3
102365.259804NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
103365.902325Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
104365.906851NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
105365.906922Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
106366.910784NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
107366.911377Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
108369.2573590.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x649f01a3
109377.2573970.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x649f01a3
110393.2571070.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x649f01a3
111410.5913180.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0xd624342
112413.7545490.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x41fd57e3
113413.755146NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
114414.427781Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
115414.431193NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
116414.431238Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
117415.430253NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
118415.430852Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
119417.7539190.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x41fd57e3
120425.7539810.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x41fd57e3
121440.7538230.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x41fd57e3
122465.3453810.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0x8bd5f244
123469.0364860.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xc76f740c
124469.037275NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
125469.695129Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
126469.698551NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
127469.698588Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
128470.699685NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
129470.700362Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
130473.0366190.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xc76f740c
131481.036550.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xc76f740c
132496.0364180.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xc76f740c
133496.119026192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xc76f740c
134496.1192410.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xc76f740c
136500.1194520.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xc76f740c
137508.1193680.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xc76f740c
138525.1191880.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xc76f740c
139563.821170.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0xa5eef585
140568.7954060.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd272cd1
141568.797014NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
142569.439486Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
143569.442861NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
144569.44292Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
145570.43857NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
146570.438992Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
147573.7953480.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd272cd1
148580.7952560.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd272cd1
149596.7950880.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd272cd1
156631.900698192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xd272cd1
168633.7998410.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x8dc747e0
177641.014070.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xbaf0311f
178641.014611NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
179641.687267Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
180641.690739NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
181641.690776Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
182642.6878NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
183642.688102Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
184644.0141860.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xbaf0311f
185651.0142520.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xbaf0311f
186667.0140830.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xbaf0311f
187687.110270.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0x6ba01116
188692.3694270.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb07b9609
189692.372087NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
190693.015381Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
191693.018763NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
192693.018799Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
193694.017311NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
194694.01788Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
195696.3692510.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb07b9609
196705.3691630.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb07b9609
197722.3689880.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb07b9609
204757.881821192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xb07b9609
217759.7988120.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xce299861
228761.646161192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xce299861
229761.6463240.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xce299861
232762.382017192.168.169.1255.255.255.255DHCPDHCP ACK - Transaction ID 0xce299861
  • discover してるのに offer がまず届かない!
  • offer が来て request で要求してるのに、まず ack が返ってこない! nak すら返ってこない!*2

そりゃ dhcpip取れんわ……

で、ここで「dhcpブロードキャストネゴシエーションしてる」という事実を知りまして(ぉ ^^; → ネットワークはとことん弱い人

ほんなら、wifi認証済んだ後dhcpip要求している最中であれば、ブロードキャストping が端末に届くんじゃねーの? と思いつきまして実験してみました



実験2 - ブロードキャストpingを投げつつ

ログ取り始めてしばらく経った後から ping -b してます

  • .34 が linux
  • /25 なので .127 がブロードキャストアドレス
  • 途中1回「wifi切断→再接続した」&「ping -b のコマンドをやり直している」
    • wifiを再接続したら繋がった
No.TimeSourceDestinationProtocolInfo
10NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
20.656914Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
30.660291NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
40.660336Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
51.660861NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
61.661338Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
73.6341040.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x62553659
88.6339520.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x62553659
916.6339040.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x62553659
1033.6336990.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x62553659
1147.975734192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x62553659
1247.9759290.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0x62553659
1447.985295192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x62553659
1647.99502192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x62553659
1848.00468192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0x62553659
1952.0046410.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0x62553659
2059.004550.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0x62553659
2176.0043410.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0x62553659
22392.0012370.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x49451e85
23396.0006030.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x49451e85
24404.0005210.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x49451e85
25419.00040.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x49451e85
41456.6302720.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xa916133d
47457.710354192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xa916133d
48457.7105050.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xa916133d
64462.7099550.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xa916133d
82469.7097930.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xa916133d
118486.7097040.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xa916133d
139509.793554192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x3204, seq=17/4352, ttl=64
149548.797709192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x3204, seq=56/14336, ttl=64
150725.049454192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x3d04, seq=93/23808, ttl=64
151785.049199192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x3d04, seq=153/39168, ttl=64
152815.048096192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x3d04, seq=183/46848, ttl=64
153816.7125320.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb0edebe0
154819.7120470.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb0edebe0
155826.7119940.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb0edebe0
156842.7118180.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xb0edebe0
174878.6259460.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x8df7801a
183881.6253650.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x8df7801a
207889.6253780.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x8df7801a
233904.6252520.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0x8df7801a
277976.544847192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=87/22272, ttl=64
2991009.574799192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=120/30720, ttl=64
3011040.3919330.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xf54c14cc
3021040.39434NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3031041.010418Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3041041.013731NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3051041.013782Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3061042.044097NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3071042.044835Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3081045.3913710.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xf54c14cc
3091053.3913090.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xf54c14cc
3101070.3911430.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xf54c14cc
3111101.616854192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=177/45312, ttl=64
3121101.618191192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=178/45568, ttl=64
3131101.619515192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=179/45824, ttl=64
3141101.62087192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=180/46080, ttl=64
3161101.627209192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=181/46336, ttl=64
3171101.63333192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xf54c14cc
3181101.633490.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xf54c14cc
3191101.634635192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=182/46592, ttl=64
3201104.6330860.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xf54c14cc
3211104.634951192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=214/54784, ttl=64
3221104.636231192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x6804, seq=215/55040, ttl=64
3231112.6330120.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xf54c14cc
3241128.6328430.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xf54c14cc
3251134.840130.0.0.0255.255.255.255DHCPDHCP Release - Transaction ID 0x6c6a2baf
3261345.626626NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3271346.270599Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3281346.273991NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3291346.274031Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3301346.280331NecAcces_a1:62:03Intel_03:8c:e8EAPOLKey
3311346.280857Intel_03:8c:e8NecAcces_a1:62:03EAPOLKey
3321348.6196340.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd32b0cc5
3331352.6197870.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd32b0cc5
3341355.043086192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=90/23040, ttl=64
3351360.6197220.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd32b0cc5
3361376.6195690.0.0.0255.255.255.255DHCPDHCP Discover - Transaction ID 0xd32b0cc5
3371385.042902192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=95/24320, ttl=64
3391385.048624192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=96/24576, ttl=64
3401385.053954192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xd32b0cc5
3411385.0541480.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xd32b0cc5
3421385.055259192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=97/24832, ttl=64
3431385.056628192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=98/25088, ttl=64
3441385.058784192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=99/25344, ttl=64
3451385.060054192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=100/25600, ttl=64
3461385.061415192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=101/25856, ttl=64
3471385.062741192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=102/26112, ttl=64
3481385.064098192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=103/26368, ttl=64
3491385.065482192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=104/26624, ttl=64
3501385.066821192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=105/26880, ttl=64
3511385.068198192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=106/27136, ttl=64
3521385.069546192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=107/27392, ttl=64
3531385.070882192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=108/27648, ttl=64
3541385.072228192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=109/27904, ttl=64
3551385.073566192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=110/28160, ttl=64
3561385.074938192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=111/28416, ttl=64
3571389.054080.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xd32b0cc5
3591389.060723192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=112/28672, ttl=64
3601389.066522192.168.169.1255.255.255.255DHCPDHCP Offer - Transaction ID 0xd32b0cc5
3611389.067758192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=113/28928, ttl=64
3621389.069108192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=114/29184, ttl=64
3631396.0667030.0.0.0255.255.255.255DHCPDHCP Request - Transaction ID 0xd32b0cc5
3641396.068535192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=115/29440, ttl=64
3651396.069862192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=116/29696, ttl=64
3661396.071208192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=117/29952, ttl=64
3681396.074447192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=118/30208, ttl=64
3701396.077155192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=119/30464, ttl=64
3721396.0798192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=120/30720, ttl=64
3731396.088605192.168.169.1255.255.255.255DHCPDHCP ACK - Transaction ID 0xd32b0cc5
3761396.091823192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=121/30976, ttl=64
3791396.095767192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=122/31232, ttl=64
3801396.097445192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=123/31488, ttl=64
3831396.101828192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=124/31744, ttl=64
3841396.110529192.168.169.1255.255.255.255DHCPDHCP NAK - Transaction ID 0xd32b0cc5
3861396.113165192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=125/32000, ttl=64
3881396.116526192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=126/32256, ttl=64
3901396.119164192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=127/32512, ttl=64
3921396.121858192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=128/32768, ttl=64
3941396.125153192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=129/33024, ttl=64
3971396.129144192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=130/33280, ttl=64
3981396.131136192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=131/33536, ttl=64
4021397.626479192.168.169.1255.255.255.255DHCPDHCP NAK - Transaction ID 0xd32b0cc5
4041397.630912192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=132/33792, ttl=64
4101401.071085192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=133/34048, ttl=64
4111401.073999192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=134/34304, ttl=64
4121401.076826192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=135/34560, ttl=64
4131401.081107192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=136/34816, ttl=64
4261406.946731192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=137/35072, ttl=64
4271406.949529192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=138/35328, ttl=64
4281406.953836192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=139/35584, ttl=64
4291406.95837192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=140/35840, ttl=64
4301406.962538192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=141/36096, ttl=64
4551445.046338192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=155/39680, ttl=64
4571445.051565192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=156/39936, ttl=64
4581445.054317192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=157/40192, ttl=64
4601445.061086192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=158/40448, ttl=64
4661450.051242192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=159/40704, ttl=64
4671450.052559192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=160/40960, ttl=64
4681450.053952192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=161/41216, ttl=64
4691450.05526192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=162/41472, ttl=64
4701450.056632192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=163/41728, ttl=64
4711450.05802192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=164/41984, ttl=64
4721450.059353192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=165/42240, ttl=64
4731450.060713192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=166/42496, ttl=64
4741450.062081192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=167/42752, ttl=64
4751450.063419192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=168/43008, ttl=64
4761450.064783192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=169/43264, ttl=64
4771450.066069192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=170/43520, ttl=64
4781450.067495192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=171/43776, ttl=64
4791450.069489192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=172/44032, ttl=64
4801450.070864192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=173/44288, ttl=64
4811450.072817192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=174/44544, ttl=64
4821450.07419192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=175/44800, ttl=64
4831450.075559192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=176/45056, ttl=64
4841450.076935192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=177/45312, ttl=64
4851450.078932192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=178/45568, ttl=64
4861450.080304192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=179/45824, ttl=64
4871450.081614192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=180/46080, ttl=64
4881450.082981192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=181/46336, ttl=64
4891450.084316192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=182/46592, ttl=64
4901450.085706192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=183/46848, ttl=64
4911450.087468192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=184/47104, ttl=64
4921450.089809192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=185/47360, ttl=64
5271456.064178192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=186/47616, ttl=64
5281456.06547192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=187/47872, ttl=64
5291456.066803192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=188/48128, ttl=64
5301456.071769192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=191/48896, ttl=64
6031457.115483192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=192/49152, ttl=64
9711458.100845192.168.169.34192.168.169.127ICMPEcho (ping) request id=0x7504, seq=193/49408, ttl=64

ICMP 届いているけど届いてなくねこれ!?

確かに届いてる。届いてるけれども、ログの前半では大体のパケットが届いてないよなーこれ……シーケンス番号めっさ飛んでるし(seq=xx/yy のyyの部分が何なのか解らないけども)


ただ、ログの後半は調子が良いところ(== wifiに再接続後近辺)を見ると、dhcp から ack が返る前の段階で快調にパケット受信してるので「条件が整うとパケットが詰まる」というのが正解なのかなぁ………いや「条件が整うと正常に通信できる」ですかね…… ^^;


他検討点 - WIFI干渉の可能性は?

http://ir9.jp/hd13/0227_01.png

http://ir9.jp/hd13/0227_02.png

他のwifi電波は有りはしますがー… そんな干渉する状況でも無いかなぁ…と思います。

ちなみに、この図で他のwifiが少ないこと・電波が弱い事、また我が家の電波が満足に出てることが解って頂けるかなと思います。

私的結論

ブロードキャストがコケるとなると、ブロードキャスト利用している dhcp もコケるよなぁー…… 製品のバグじゃないのコレー? と思うんですが、確信を持てるほど知識を持っていない私としては強い結論は出せず……

なお、2ch の専用スレでは、私とほぼ同じ問題であろう障害は報告されてます。 この障害は私だけではない模様……?

153 :不明なデバイスさん:2013/02/20(水) 20:16:51.76 ID:4OQK1/8K
    WR8165Nブリッジで使ってるけどDHCP払い出すのワンテンポ遅くない?
    通信始まってしまえば良好だけど 

193 :不明なデバイスさん:2013/02/23(土) 00:23:56.86 ID:w4ZPM+az
    8165はブリッジが不安定

なお、ipが取れた後は今のところ超快適に利用できてます。11n 速えーわー、11g と全然違うわーこれは良いわーと、この辺りの面は大変満足してます。 問題は最初だけなんですよホンマに!

あと、ブリッジモードではなく、通常のwifiルーターとして運用する分には amazon のレビューを見る限りとても安定しているようですし、上記の 2ch のスレでも特に大きな不満は出てないようです。



dhcpip が取得できないって話なので、端末に静的ip割り当てれば通信できそうですけども… 最悪それで対応かなぁ…





…という長文の記事を書いたので、このURLをサポートに送り状況を確認してみる次第。 ファームのアップデートで直りそうな気がするので、是非とも直して欲しいなぁー。 (ほぼ)生ログも置いておきます ので是非とも改善をよろしくお願いします>中の人

*1:悪いという評価でアフリエイトURLを張る程度の能力

*2:数回 offer が返ってきてるのに request 投げてないという謎はありますが…

トラックバック - http://d.hatena.ne.jp/ir9Ex/20130227/1361967331