Actions
AirMacExpressのPPPoE動作¶
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。
ちなみに、
- PPPoEクライアント: AirMacExpress
- PPPoEサーバ: Cisco1841
「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。
結論¶
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 。
具体的にはこんな感じ。
*Aug 11 19:31:12.167: ppp19 PPP: Using AAA Unique Id = 20 *Aug 11 19:31:12.171: ppp19 PPP: Authorization required *Aug 11 19:31:12.171: ppp19 PPP: Using vpn set call direction *Aug 11 19:31:12.171: ppp19 PPP: Treating connection as a callin *Aug 11 19:31:12.171: ppp19 PPP: Session handle[8E000013] Session id[19] *Aug 11 19:31:12.179: ppp19 CHAP: O CHALLENGE id 1 len 26 from "c1841" *Aug 11 19:31:12.179: ppp19 CHAP: I RESPONSE id 1 len 28 from "client2" *Aug 11 19:31:12.179: ppp19 PPP: Sent CHAP LOGIN Request *Aug 11 19:31:12.183: ppp19 PPP: Received LOGIN Response PASS *Aug 11 19:31:12.183: ppp19 PPP AUTHOR: Author Data NOT Available *Aug 11 19:31:12.183: ppp19 PPP: Sent LCP AUTHOR Request *Aug 11 19:31:12.183: ppp19 PPP: Sent IPCP AUTHOR Request *Aug 11 19:31:12.183: ppp19 LCP: Received AAA AUTHOR Response PASS *Aug 11 19:31:12.183: ppp19 PPP: Receive Attrs from[author] Keep[LCP] MERGE *Aug 11 19:31:12.183: ppp19 PPP: Keep Attr: Framed-Protocol 1 [PPP] *Aug 11 19:31:12.183: ppp19 PPP: Updated the attr Framed-Protocol in datalist *Aug 11 19:31:12.183: ppp19 PPP: Keep Attr: username "client2" *Aug 11 19:31:12.183: ppp19 PPP: Updated the attr username in datalist *Aug 11 19:31:12.187: ppp19 IPCP: Received AAA AUTHOR Response PASS *Aug 11 19:31:12.187: ppp19 PPP: Receive Attrs from[author] Keep[LCP+NCPs] MERGE *Aug 11 19:31:12.187: ppp19 PPP: Keep Attr: Framed-Protocol 1 [PPP] *Aug 11 19:31:12.187: ppp19 PPP: Updated the attr Framed-Protocol in datalist *Aug 11 19:31:12.187: ppp19 PPP: Keep Attr: username "client2" *Aug 11 19:31:12.187: ppp19 PPP: Updated the attr username in datalist *Aug 11 19:31:12.191: ppp19 PPP: Receive Attrs from[SSS] Keep[NCPs] MERGE *Aug 11 19:31:12.191: ppp19 PPP: Skip Attr: Framed-Protocol 1 [PPP] *Aug 11 19:31:12.191: ppp19 PPP: Skip Attr: username "client2" *Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process LCP Author Data *Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process Attr: Framed-Protocol *Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Process Attr: username *Aug 11 19:31:12.203: Vi2.2 LCP AUTHOR: Authorization succeeded *Aug 11 19:31:12.203: Vi2.2 CHAP: O SUCCESS id 1 len 4 *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 0.0.0.0 *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 0.0.0.0 *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 0.0.0.0 *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.203: Vi2.2 IPCP AUTHOR: no author-info for seconday dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.207: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:12.211: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3 *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:13.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3 *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:14.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3 *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:15.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3 *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.195: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.199: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:16.203: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 200.200.199.3 *Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 200.200.199.3 *Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 19:31:17.195: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 200.200.199.3
対策¶
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。
c1841#conf t Enter configuration commands, one per line. End with CNTL/Z. c1841(config)#ip dns server c1841(config)#ip name-server 192.168.2.2 c1841(config)#^Z c1841#wr m *Aug 11 19:46:40.535: %SYS-5-CONFIG_I: Configured from console by console Building configuration... [OK] c1841#
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。
c1841# *Aug 11 20:43:53.323: Vi2.2 PPP: Clearing AAA Unique Id = 25 *Aug 11 20:43:59.391: ppp24 PPP: Using AAA Unique Id = 26 *Aug 11 20:43:59.391: ppp24 PPP: Authorization required *Aug 11 20:43:59.391: ppp24 PPP: Using vpn set call direction *Aug 11 20:43:59.391: ppp24 PPP: Treating connection as a callin *Aug 11 20:43:59.391: ppp24 PPP: Session handle[33000018] Session id[24] *Aug 11 20:43:59.411: ppp24 CHAP: O CHALLENGE id 1 len 26 from "c1841" *Aug 11 20:43:59.411: ppp24 CHAP: I RESPONSE id 1 len 28 from "client2" *Aug 11 20:43:59.411: ppp24 PPP: Sent CHAP LOGIN Request *Aug 11 20:43:59.415: ppp24 PPP: Received LOGIN Response PASS *Aug 11 20:43:59.415: ppp24 PPP AUTHOR: Author Data NOT Available *Aug 11 20:43:59.415: ppp24 PPP: Sent LCP AUTHOR Request *Aug 11 20:43:59.415: ppp24 PPP: Sent IPCP AUTHOR Request *Aug 11 20:43:59.415: ppp24 LCP: Received AAA AUTHOR Response PASS *Aug 11 20:43:59.415: ppp24 PPP: Receive Attrs from[author] Keep[LCP] MERGE *Aug 11 20:43:59.415: ppp24 PPP: Keep Attr: Framed-Protocol 1 [PPP] *Aug 11 20:43:59.415: ppp24 PPP: Updated the attr Framed-Protocol in datalist *Aug 11 20:43:59.415: ppp24 PPP: Keep Attr: username "client2" *Aug 11 20:43:59.415: ppp24 PPP: Updated the attr username in datalist *Aug 11 20:43:59.419: ppp24 IPCP: Received AAA AUTHOR Response PASS *Aug 11 20:43:59.419: ppp24 PPP: Receive Attrs from[author] Keep[LCP+NCPs] MERGE *Aug 11 20:43:59.419: ppp24 PPP: Keep Attr: Framed-Protocol 1 [PPP] *Aug 11 20:43:59.419: ppp24 PPP: Updated the attr Framed-Protocol in datalist *Aug 11 20:43:59.419: ppp24 PPP: Keep Attr: username "client2" *Aug 11 20:43:59.419: ppp24 PPP: Updated the attr username in datalist *Aug 11 20:43:59.423: ppp24 PPP: Receive Attrs from[SSS] Keep[NCPs] MERGE *Aug 11 20:43:59.423: ppp24 PPP: Skip Attr: Framed-Protocol 1 [PPP] *Aug 11 20:43:59.423: ppp24 PPP: Skip Attr: username "client2" *Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process LCP Author Data *Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process Attr: Framed-Protocol *Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Process Attr: username *Aug 11 20:43:59.435: Vi2.2 LCP AUTHOR: Authorization succeeded *Aug 11 20:43:59.435: Vi2.2 CHAP: O SUCCESS id 1 len 4 *Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Start. Her address 0.0.0.1, we want 0.0.0.0 *Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Reject 0.0.0.1, using 0.0.0.0 *Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Authorization succeeded *Aug 11 20:43:59.435: Vi2.2 IPCP AUTHOR: Done. Her address 0.0.0.1, we want 0.0.0.0 *Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for seconday dns *Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns *Aug 11 20:43:59.439: Vi2.2 IPCP AUTHOR: no author-info for primary dns
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。
Updated by Tsutomu KIMURA almost 11 years ago · 1 revisions locked