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AirMacExpressのPPPoE動作 » History » Version 1

Tsutomu KIMURA, 07/15/2013 12:21 AM

1 1 Tsutomu KIMURA 
h1. AirMacExpressのPPPoE動作
2 





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ふつーにISPへの接続する場合は特に気をつけなくていいのだが、今回実験環境でドはまりしたのでメモ。





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ちなみに、





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* PPPoEクライアント: AirMacExpress





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* PPPoEサーバ: Cisco1841





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「え? Ciscoルータにそんな機能あったか?」と思われた方。あるんです。詳しくは検索してみて下さい。





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h2. 結論





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AirMacExpress(以下AMEと略記)からのPPPoE接続を受けるPPPoEサーバは、PPPoEクライアントであるAMEに対して、 *必ず* DNSサーバの情報を渡してあげないとダメ(DNSサーバの実態があるかどうかは問題ではない。情報として、AMEへ渡してやる事が重要)。さもないと、「DNSサーバ情報をよこせ〜」と *延々問い合わせを投げ続け、IPCPフェイズが終了しないという状態に陥る* 。





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具体的にはこんな感じ。





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<pre>





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*Aug 11 19:31:12.167: ppp19 PPP: Using AAA Unique Id = 20





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*Aug 11 19:31:12.171: ppp19 PPP: Authorization required





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*Aug 11 19:31:12.171: ppp19 PPP: Using vpn set call direction





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*Aug 11 19:31:12.171: ppp19 PPP: Treating connection as a callin





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*Aug 11 19:31:12.171: ppp19 PPP: Session handle[8E000013] Session id[19]





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*Aug 11 19:31:12.179: ppp19 CHAP: O CHALLENGE id 1 len 26 from "c1841"





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*Aug 11 19:31:12.179: ppp19 CHAP: I RESPONSE id 1 len 28 from "client2"





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*Aug 11 19:31:12.179: ppp19 PPP: Sent CHAP LOGIN Request





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*Aug 11 19:31:12.183: ppp19 PPP: Received LOGIN Response PASS





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*Aug 11 19:31:12.183: ppp19 PPP AUTHOR: Author Data NOT Available





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*Aug 11 19:31:12.183: ppp19 PPP: Sent LCP AUTHOR Request





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*Aug 11 19:31:12.183: ppp19 PPP: Sent IPCP AUTHOR Request





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*Aug 11 19:31:12.183: ppp19 LCP: Received AAA AUTHOR Response PASS





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*Aug 11 19:31:12.183: ppp19 PPP: Receive Attrs from[author] Keep[LCP] MERGE





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*Aug 11 19:31:12.183: ppp19 PPP: Keep Attr: Framed-Protocol      1 [PPP]





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*Aug 11 19:31:12.183: ppp19 PPP: Updated the attr Framed-Protocol in datalist





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*Aug 11 19:31:12.183: ppp19 PPP: Keep Attr: username             "client2"





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*Aug 11 19:31:12.183: ppp19 PPP: Updated the attr username in datalist





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*Aug 11 19:31:12.187: ppp19 IPCP: Received AAA AUTHOR Response PASS





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*Aug 11 19:31:12.187: ppp19 PPP: Receive Attrs from[author] Keep[LCP+NCPs] MERGE





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*Aug 11 19:31:12.187: ppp19 PPP: Keep Attr: Framed-Protocol      1 [PPP]





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*Aug 11 19:31:12.187: ppp19 PPP: Updated the attr Framed-Protocol in datalist





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*Aug 11 19:31:12.187: ppp19 PPP: Keep Attr: username             "client2"





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*Aug 11 19:31:12.187: ppp19 PPP: Updated the attr username in datalist





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*Aug 11 19:31:12.191: ppp19 PPP: Receive Attrs from[SSS] Keep[NCPs] MERGE





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*Aug 11 19:31:12.191: ppp19 PPP: Skip Attr: Framed-Protocol      1 [PPP]





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*Aug 11 19:31:12.191: ppp19 PPP: Skip Attr: username             "client2"





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*Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process LCP Author Data





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*Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process Attr: Framed-Protocol





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*Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process Attr: username





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*Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:12.203: Vi2.2 CHAP: O SUCCESS id 1 len 4





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 0.0.0.0





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 0.0.0.0





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 0.0.0.0





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: no author-info for seconday dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:13.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:14.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:15.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:16.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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*Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 200.200.199.3





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*Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3





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*Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Authorization succeeded





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*Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 200.200.199.3





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</pre>





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h2. 対策





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要はPPPoEサーバ側でDNSサーバの情報を渡してやる。具体的にはどうするかだが、今回はこんな方法で乗り切りました。





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<pre>





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c1841#conf t





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Enter configuration commands, one per line.  End with CNTL/Z.





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c1841(config)#ip dns server 





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c1841(config)#ip name-server 192.168.2.2





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c1841(config)#^Z





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c1841#wr m





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*Aug 11 19:46:40.535: %SYS-5-CONFIG_I: Configured from console by console





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Building configuration...





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[OK]





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c1841#





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</pre>





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*ip dns server* と *ip name-server* が鍵ですか。上記の設定を施した後、AMEから接続を行った際のCisco側のログは以下の通り。





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<pre>





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c1841#





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*Aug 11 20:43:53.323: Vi2.2 PPP: Clearing AAA Unique Id = 25





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*Aug 11 20:43:59.391: ppp24 PPP: Using AAA Unique Id = 26





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*Aug 11 20:43:59.391: ppp24 PPP: Authorization required





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*Aug 11 20:43:59.391: ppp24 PPP: Using vpn set call direction





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*Aug 11 20:43:59.391: ppp24 PPP: Treating connection as a callin





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*Aug 11 20:43:59.391: ppp24 PPP: Session handle[33000018] Session id[24]





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*Aug 11 20:43:59.411: ppp24 CHAP: O CHALLENGE id 1 len 26 from "c1841"





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*Aug 11 20:43:59.411: ppp24 CHAP: I RESPONSE id 1 len 28 from "client2"





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*Aug 11 20:43:59.411: ppp24 PPP: Sent CHAP LOGIN Request





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*Aug 11 20:43:59.415: ppp24 PPP: Received LOGIN Response PASS





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*Aug 11 20:43:59.415: ppp24 PPP AUTHOR: Author Data NOT Available





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*Aug 11 20:43:59.415: ppp24 PPP: Sent LCP AUTHOR Request





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*Aug 11 20:43:59.415: ppp24 PPP: Sent IPCP AUTHOR Request





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*Aug 11 20:43:59.415: ppp24 LCP: Received AAA AUTHOR Response PASS





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*Aug 11 20:43:59.415: ppp24 PPP: Receive Attrs from[author] Keep[LCP] MERGE





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*Aug 11 20:43:59.415: ppp24 PPP: Keep Attr: Framed-Protocol      1 [PPP]





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*Aug 11 20:43:59.415: ppp24 PPP: Updated the attr Framed-Protocol in datalist





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*Aug 11 20:43:59.415: ppp24 PPP: Keep Attr: username             "client2"





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*Aug 11 20:43:59.415: ppp24 PPP: Updated the attr username in datalist





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*Aug 11 20:43:59.419: ppp24 IPCP: Received AAA AUTHOR Response PASS





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*Aug 11 20:43:59.419: ppp24 PPP: Receive Attrs from[author] Keep[LCP+NCPs] MERGE





    170
    
    
    
*Aug 11 20:43:59.419: ppp24 PPP: Keep Attr: Framed-Protocol      1 [PPP]





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*Aug 11 20:43:59.419: ppp24 PPP: Updated the attr Framed-Protocol in datalist





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*Aug 11 20:43:59.419: ppp24 PPP: Keep Attr: username             "client2"





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*Aug 11 20:43:59.419: ppp24 PPP: Updated the attr username in datalist





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*Aug 11 20:43:59.423: ppp24 PPP: Receive Attrs from[SSS] Keep[NCPs] MERGE





    175
    
    
    
*Aug 11 20:43:59.423: ppp24 PPP: Skip Attr: Framed-Protocol      1 [PPP]





    176
    
    
    
*Aug 11 20:43:59.423: ppp24 PPP: Skip Attr: username             "client2"





    177
    
    
    
*Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process LCP Author Data





    178
    
    
    
*Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process Attr: Framed-Protocol





    179
    
    
    
*Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process Attr: username





    180
    
    
    
*Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Authorization succeeded





    181
    
    
    
*Aug 11 20:43:59.435: Vi2.2 CHAP: O SUCCESS id 1 len 4





    182
    
    
    
*Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Start.  Her address 0.0.0.1, we want 0.0.0.0





    183
    
    
    
*Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 0.0.0.0





    184
    
    
    
*Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Authorization succeeded





    185
    
    
    
*Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Done.  Her address 0.0.0.1, we want 0.0.0.0





    186
    
    
    
*Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns





    187
    
    
    
*Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for seconday dns





    188
    
    
    
*Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns





    189
    
    
    
*Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns





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</pre>





    191
    
    
    





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まだ気になる部分はあるのですが、PPPoEクライアント/サーバ間の疎通性は確保できたのでいったんここまでとします。やりたい事はこの先にあるので。