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

diary tech

NEC AtermWR8165N(STモデル) PA-WR8165N-ST
NEC AtermWR8165N(STモデル) PA-WR8165N-ST
posted with amazlet at 13.02.27
NEC (2012-10-12)
売り上げランキング: 953
Amazon.co.jpで詳細を見る

↑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 のパケットを返してくれてない様子。 …っていうか、ブロードキャストな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の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. Time Source Destination Protocol Info
1 0 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
2 0.701216 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
3 0.704683 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
4 0.704747 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
5 1.704625 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
6 1.705245 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
7 2.805065 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x95ef9b78
8 6.805233 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x95ef9b78
9 14.805179 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x95ef9b78
10 30.804987 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x95ef9b78
11 48.300778 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0xe13ccfe4
12 52.166524 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x547dc79d
13 52.169059 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
14 52.841769 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
15 52.84513 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
16 52.845172 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
17 53.844028 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
18 53.844268 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
19 57.166001 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x547dc79d
20 66.165906 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x547dc79d
21 82.165809 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x547dc79d
30 117.633942 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x547dc79d
32 117.643551 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x547dc79d
40 122.664773 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xa22ed027
41 122.666238 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
42 123.33944 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
43 123.342948 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
44 123.342979 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
45 124.374408 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
46 124.374924 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
47 126.664334 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xa22ed027
48 134.664249 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xa22ed027
49 150.664084 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xa22ed027
50 163.37274 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0xf5a5149e
51 167.022159 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x1d89e7ec
52 167.024129 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
53 167.695402 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
54 167.699223 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
55 167.699286 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
56 168.702862 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
57 168.703473 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
58 171.022298 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x1d89e7ec
59 179.022167 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x1d89e7ec
60 195.022009 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x1d89e7ec
61 206.517989 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0x23e2840d
62 208.969172 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x4a37861c
63 208.971572 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
64 209.639418 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
65 209.642692 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
66 209.642765 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
67 210.642437 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
68 210.643033 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
69 213.969024 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x4a37861c
70 222.968944 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x4a37861c
71 237.968787 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x4a37861c
72 249.916789 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0x47c3126b
73 254.025414 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd8b56640
74 254.026156 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
75 254.703654 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
76 254.707052 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
77 254.707094 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
78 255.701964 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
79 255.702594 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
80 258.025139 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd8b56640
81 267.025119 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd8b56640
82 282.02496 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd8b56640
90 324.018626 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x2917bb2c
91 324.020842 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
92 324.70455 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
93 324.707951 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
94 324.708021 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
95 325.711209 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
96 325.711862 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
97 328.018644 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x2917bb2c
98 337.018536 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x2917bb2c
99 353.018378 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x2917bb2c
100 361.112293 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0xdb165e62
101 365.257201 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x649f01a3
102 365.259804 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
103 365.902325 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
104 365.906851 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
105 365.906922 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
106 366.910784 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
107 366.911377 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
108 369.257359 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x649f01a3
109 377.257397 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x649f01a3
110 393.257107 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x649f01a3
111 410.591318 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0xd624342
112 413.754549 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x41fd57e3
113 413.755146 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
114 414.427781 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
115 414.431193 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
116 414.431238 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
117 415.430253 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
118 415.430852 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
119 417.753919 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x41fd57e3
120 425.753981 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x41fd57e3
121 440.753823 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x41fd57e3
122 465.345381 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0x8bd5f244
123 469.036486 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xc76f740c
124 469.037275 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
125 469.695129 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
126 469.698551 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
127 469.698588 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
128 470.699685 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
129 470.700362 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
130 473.036619 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xc76f740c
131 481.03655 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xc76f740c
132 496.036418 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xc76f740c
133 496.119026 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xc76f740c
134 496.119241 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xc76f740c
136 500.119452 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xc76f740c
137 508.119368 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xc76f740c
138 525.119188 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xc76f740c
139 563.82117 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0xa5eef585
140 568.795406 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd272cd1
141 568.797014 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
142 569.439486 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
143 569.442861 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
144 569.44292 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
145 570.43857 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
146 570.438992 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
147 573.795348 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd272cd1
148 580.795256 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd272cd1
149 596.795088 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd272cd1
156 631.900698 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xd272cd1
168 633.799841 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x8dc747e0
177 641.01407 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xbaf0311f
178 641.014611 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
179 641.687267 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
180 641.690739 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
181 641.690776 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
182 642.6878 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
183 642.688102 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
184 644.014186 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xbaf0311f
185 651.014252 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xbaf0311f
186 667.014083 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xbaf0311f
187 687.11027 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0x6ba01116
188 692.369427 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb07b9609
189 692.372087 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
190 693.015381 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
191 693.018763 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
192 693.018799 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
193 694.017311 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
194 694.01788 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
195 696.369251 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb07b9609
196 705.369163 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb07b9609
197 722.368988 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb07b9609
204 757.881821 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xb07b9609
217 759.798812 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xce299861
228 761.646161 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xce299861
229 761.646324 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xce299861
232 762.382017 192.168.169.1 255.255.255.255 DHCP DHCP 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 dhcp で ip取れんわ……

で、ここで「dhcpはブロードキャストで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dhcpでip要求している最中であれば、ブロードキャストな 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 - ブロードキャストな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鯖
  • /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. Time Source Destination Protocol Info
1 0 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
2 0.656914 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
3 0.660291 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
4 0.660336 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
5 1.660861 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
6 1.661338 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
7 3.634104 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x62553659
8 8.633952 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x62553659
9 16.633904 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x62553659
10 33.633699 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x62553659
11 47.975734 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x62553659
12 47.975929 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0x62553659
14 47.985295 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x62553659
16 47.99502 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x62553659
18 48.00468 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0x62553659
19 52.004641 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0x62553659
20 59.00455 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0x62553659
21 76.004341 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0x62553659
22 392.001237 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x49451e85
23 396.000603 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x49451e85
24 404.000521 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x49451e85
25 419.0004 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x49451e85
41 456.630272 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xa916133d
47 457.710354 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xa916133d
48 457.710505 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xa916133d
64 462.709955 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xa916133d
82 469.709793 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xa916133d
118 486.709704 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xa916133d
139 509.793554 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x3204, seq=17/4352, ttl=64
149 548.797709 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x3204, seq=56/14336, ttl=64
150 725.049454 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x3d04, seq=93/23808, ttl=64
151 785.049199 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x3d04, seq=153/39168, ttl=64
152 815.048096 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x3d04, seq=183/46848, ttl=64
153 816.712532 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb0edebe0
154 819.712047 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb0edebe0
155 826.711994 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb0edebe0
156 842.711818 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xb0edebe0
174 878.625946 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x8df7801a
183 881.625365 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x8df7801a
207 889.625378 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x8df7801a
233 904.625252 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0x8df7801a
277 976.544847 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=87/22272, ttl=64
299 1009.574799 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=120/30720, ttl=64
301 1040.391933 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xf54c14cc
302 1040.39434 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
303 1041.010418 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
304 1041.013731 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
305 1041.013782 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
306 1042.044097 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
307 1042.044835 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
308 1045.391371 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xf54c14cc
309 1053.391309 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xf54c14cc
310 1070.391143 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xf54c14cc
311 1101.616854 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=177/45312, ttl=64
312 1101.618191 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=178/45568, ttl=64
313 1101.619515 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=179/45824, ttl=64
314 1101.62087 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=180/46080, ttl=64
316 1101.627209 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=181/46336, ttl=64
317 1101.63333 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xf54c14cc
318 1101.63349 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xf54c14cc
319 1101.634635 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=182/46592, ttl=64
320 1104.633086 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xf54c14cc
321 1104.634951 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=214/54784, ttl=64
322 1104.636231 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x6804, seq=215/55040, ttl=64
323 1112.633012 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xf54c14cc
324 1128.632843 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xf54c14cc
325 1134.84013 0.0.0.0 255.255.255.255 DHCP DHCP Release - Transaction ID 0x6c6a2baf
326 1345.626626 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
327 1346.270599 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
328 1346.273991 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
329 1346.274031 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
330 1346.280331 NecAcces_a1:62:03 Intel_03:8c:e8 EAPOL Key
331 1346.280857 Intel_03:8c:e8 NecAcces_a1:62:03 EAPOL Key
332 1348.619634 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd32b0cc5
333 1352.619787 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd32b0cc5
334 1355.043086 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=90/23040, ttl=64
335 1360.619722 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd32b0cc5
336 1376.619569 0.0.0.0 255.255.255.255 DHCP DHCP Discover - Transaction ID 0xd32b0cc5
337 1385.042902 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=95/24320, ttl=64
339 1385.048624 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=96/24576, ttl=64
340 1385.053954 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xd32b0cc5
341 1385.054148 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xd32b0cc5
342 1385.055259 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=97/24832, ttl=64
343 1385.056628 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=98/25088, ttl=64
344 1385.058784 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=99/25344, ttl=64
345 1385.060054 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=100/25600, ttl=64
346 1385.061415 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=101/25856, ttl=64
347 1385.062741 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=102/26112, ttl=64
348 1385.064098 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=103/26368, ttl=64
349 1385.065482 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=104/26624, ttl=64
350 1385.066821 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=105/26880, ttl=64
351 1385.068198 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=106/27136, ttl=64
352 1385.069546 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=107/27392, ttl=64
353 1385.070882 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=108/27648, ttl=64
354 1385.072228 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=109/27904, ttl=64
355 1385.073566 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=110/28160, ttl=64
356 1385.074938 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=111/28416, ttl=64
357 1389.05408 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xd32b0cc5
359 1389.060723 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=112/28672, ttl=64
360 1389.066522 192.168.169.1 255.255.255.255 DHCP DHCP Offer - Transaction ID 0xd32b0cc5
361 1389.067758 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=113/28928, ttl=64
362 1389.069108 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=114/29184, ttl=64
363 1396.066703 0.0.0.0 255.255.255.255 DHCP DHCP Request - Transaction ID 0xd32b0cc5
364 1396.068535 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=115/29440, ttl=64
365 1396.069862 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=116/29696, ttl=64
366 1396.071208 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=117/29952, ttl=64
368 1396.074447 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=118/30208, ttl=64
370 1396.077155 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=119/30464, ttl=64
372 1396.0798 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=120/30720, ttl=64
373 1396.088605 192.168.169.1 255.255.255.255 DHCP DHCP ACK - Transaction ID 0xd32b0cc5
376 1396.091823 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=121/30976, ttl=64
379 1396.095767 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=122/31232, ttl=64
380 1396.097445 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=123/31488, ttl=64
383 1396.101828 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=124/31744, ttl=64
384 1396.110529 192.168.169.1 255.255.255.255 DHCP DHCP NAK - Transaction ID 0xd32b0cc5
386 1396.113165 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=125/32000, ttl=64
388 1396.116526 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=126/32256, ttl=64
390 1396.119164 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=127/32512, ttl=64
392 1396.121858 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=128/32768, ttl=64
394 1396.125153 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=129/33024, ttl=64
397 1396.129144 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=130/33280, ttl=64
398 1396.131136 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=131/33536, ttl=64
402 1397.626479 192.168.169.1 255.255.255.255 DHCP DHCP NAK - Transaction ID 0xd32b0cc5
404 1397.630912 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=132/33792, ttl=64
410 1401.071085 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=133/34048, ttl=64
411 1401.073999 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=134/34304, ttl=64
412 1401.076826 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=135/34560, ttl=64
413 1401.081107 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=136/34816, ttl=64
426 1406.946731 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=137/35072, ttl=64
427 1406.949529 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=138/35328, ttl=64
428 1406.953836 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=139/35584, ttl=64
429 1406.95837 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=140/35840, ttl=64
430 1406.962538 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=141/36096, ttl=64
455 1445.046338 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=155/39680, ttl=64
457 1445.051565 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=156/39936, ttl=64
458 1445.054317 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=157/40192, ttl=64
460 1445.061086 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=158/40448, ttl=64
466 1450.051242 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=159/40704, ttl=64
467 1450.052559 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=160/40960, ttl=64
468 1450.053952 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=161/41216, ttl=64
469 1450.05526 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=162/41472, ttl=64
470 1450.056632 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=163/41728, ttl=64
471 1450.05802 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=164/41984, ttl=64
472 1450.059353 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=165/42240, ttl=64
473 1450.060713 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=166/42496, ttl=64
474 1450.062081 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=167/42752, ttl=64
475 1450.063419 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=168/43008, ttl=64
476 1450.064783 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=169/43264, ttl=64
477 1450.066069 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=170/43520, ttl=64
478 1450.067495 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=171/43776, ttl=64
479 1450.069489 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=172/44032, ttl=64
480 1450.070864 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=173/44288, ttl=64
481 1450.072817 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=174/44544, ttl=64
482 1450.07419 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=175/44800, ttl=64
483 1450.075559 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=176/45056, ttl=64
484 1450.076935 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=177/45312, ttl=64
485 1450.078932 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=178/45568, ttl=64
486 1450.080304 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=179/45824, ttl=64
487 1450.081614 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=180/46080, ttl=64
488 1450.082981 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=181/46336, ttl=64
489 1450.084316 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=182/46592, ttl=64
490 1450.085706 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=183/46848, ttl=64
491 1450.087468 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=184/47104, ttl=64
492 1450.089809 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=185/47360, ttl=64
527 1456.064178 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=186/47616, ttl=64
528 1456.06547 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=187/47872, ttl=64
529 1456.066803 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=188/48128, ttl=64
530 1456.071769 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=191/48896, ttl=64
603 1457.115483 192.168.169.34 192.168.169.127 ICMP Echo (ping) request id=0x7504, seq=192/49152, ttl=64
971 1458.100845 192.168.169.34 192.168.169.127 ICMP Echo (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の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。



dhcp で ip 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付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…