2/ PPPoE AC(Access Concentrator) PPPoE PPPoE Ping FTP PP

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1 PPPoE HATS LAN

2 2/ PPPoE AC(Access Concentrator) PPPoE PPPoE Ping FTP PPPoE

3 3/ PPPoE PPPoE Ping FTP PPPoE PPPoE PPPoE Ping FTP PPPoE

4 4/31 IT xdslcatv IT IT ADSLAsymmetric DSLCATVCable TV FTTHFiber To The Home LAN ADSL DSL ADSL ADSL xdsl DSLDigital Subscriber Line 1 ADSL PPPoEPPP Over EthernetRFC2516 PPPoE ISDN PPPPoint-to-Point Protocol PPP IP PPPoE ADSL

5 5/31 PPPoE ADSL PPPoE ( )AC(Access Concentrator )

6 6/31 ( )AC( ) PPPoE AC : AC: Service-Name TAGAC-Name TAG NAT PPP PAP CHAP PPPoE PPPoE : AC: NAT PPP (a)pap (b)chap

7 7/31 PPPoE OSI OSI RFC959FILE TRANSFER PROTOCOL (FTP) RFC792INTERNET CONTROL MESSAGE PROTOCOL RFC791INTERNET PROTOCOL RFC1332The PPP Internet Protocol Control Protocol(IPCP) RFC1994PPP Challenge Handshake Authentication Protocol(CHAP) RFC1334PPP Authentication Protocols RFC1661The Point-to-Point Protocol(PPP) RFC2516A Method for Transmitting PPP Over Ethernet(PPPoE) ISO8802-3CSMA/CD

8 8/31 ATU-R ADSL Transceiver Unit at the Remote terminal end ADSL ATU-C ADSL Transceiver Unit at the Central office end ADSL DSLAMDigital Subcriber Line Access Multiplexer BAS AC Broad band Access ServerATM PPP ISP Access Concentrator PPPoE

9 9/31 PPPoE :AC: AC PPPoE _1 n AC PPPoE _1 n AC_1 AC ACAccess Concentrator

10 10/31 PPPoE PPPoE AC(Access Concentrator) PPPoE AC(Access Concentrator)

11 11/31 PPPoE PPPoE AC PPPoE Discovery Stage TAG PPP Session Stage 1)LCP LCP MRU(Maximum-Receive-Unit )1492 2) (a)pap/(b)chap 3)NCP IPCP(Internet Protocol Control Protocol)IP-Address AC PPPoE PPPoE IP LCPLink Control Protocol MRU NCPNetwork Control Protocol IP IPCP 3)NCP AC IP PPPoE NAT PPPoE NAT IP AC PPPoE PPPoE PPPoE PPPoE IP LAN IP (AC IP ) () (/24) IP PPPoE ( )AC () (/24) () (/24)

12 12/31

13 13/31 PPPoE PPPoE PPPoE AC PPPoE PPPoE LCP Echo-Request LCP Echo-Reply PPPoE PPPoE Ping PPPoE AC PPPoE PPPoE LAN PC AC PC Ping ICMP ICMP

14 14/31 FTP PPPoE AC PPPoE AC PC FTP PPPoE LAN PC(FTP ) FTP GET( ), PUT( ) GET( ), PUT( ) PPPoE PPPoE AC PPPoE PPPoE AC LCP Terminate-Request PADT PPPoE PADT PPPoE PPPoE AC PPPoE, AC LCP Echo-Request LCP Echo-Reply PPPoE PPPoE

15 15/31 PPPoE :AC: NAT PPPoE ID PPPoE IP ( )AC IP or LAN IP Service-Name TAGAC-Name TAG PAP NAT(NAPT(IP Masquerade)) ACPPPoE PPPoE ID (PAP ) Service-Name TAGAC-Name TAG PPPoE NAT PPPoE TAG AC ( AC 1 ) MRU PAP PPPoE IP IP AC PPPoE PPPoE AC LCP Echo-Request LCP Echo-Reply Ping PPPoE LAN PC AC PC Ping FTP FTP PPPoE LAN PC FTP AC PC GET( ), PUT( ) PPPoE PPPoE

16 16/31 PPPoE ID PPPoE IP ( )AC IP or LAN IP Service-Name TAGAC-Name TAG CHAP NAT(NAPT(IP Masquerade)) ACPPPoE IP PPPoE ID (CHAP ) Service-Name TAGAC-Name TAG TAG AC ( AC 1 ) PPPoE MRU CHAP PPPoE IP IP AC PPPoE PPPoE AC LCP Echo-Request LCP Echo-Reply Ping PPPoE LAN PC AC PC Ping FTP FTP PPPoE LAN PC FTP AC PC GET( ), PUT( ) PPPoE AC PPPoE PPPoE _1n AC_1 PPPoE Ping LAN FTP AC_1 AC(AC_2)

17 17/31 PPPoE _1n AC_1 PC_1 PPPoE _1 PC_1 AC_1 PPPoE _1 AC_1 PPPoE PPPoE _1 PPPoE Discovery Stage Service-Name TAG AC-Name TAG PPP Session Stage 1)LCP MRU ( ) 2) (a)pap/(b)chap ID 3)NCP IPCP IP-Address PPPoE IP AC PPPoE PPPoE PPPoE IP LAN IP (PPPoE PPPoE IP IP PPPoE LAN PPPoE IP PPPoE NAT(NAPT(IP Masquerade)) ) 2)(a)(b) PPPoE _1 LAN PPPoE PAP CHAP PPPoE AC AC_1 PPPoE

18 18/31 Discovery Stage ID PPPoE Service-Name TAG AC-Name TAG PPP Session Stage 1)LCP MRU ( ) 2) (a)pap/(b)chap ID 3)NCP IPCP IP-Address AC_1 PPPoE PPPoE IP PPPoE PPPoE PPPoE IP 2)(a)(b) AC_1 PPPoE PPPoE IP PPPoE (PPPoE NAT IP PPPoE IP ) PPPoE LCP MRU PPPoE _1 AC_1 LCP MRU LAN PAP PPPoE _1 AC_1 PAP PPPoE PPPoE _1, AC_1 LAN ID, PPPoE PPPoE IP

19 19/31 PPPoE PPPoE _1 AC_1 LCP Echo-Request LCP Echo-Reply PPPoE LAN Ping PPPoE _1 LAN PC_1 AC_1 PC_1 Ping ICMP ICMP (, ) FTP AC_1 PC_1 FTP PPPoE _1 LAN PC_1(FTP ) FTP GET( ), PUT( ) (, ) GET( ), PUT( ) PPPoE PPPoE_1 AC_1 LCP Terminate-Request PADT PPPoE PADT PPPoE PPPoE _1, AC_1 LAN PPPoE _1 AC_1 PPPoE AC_1 LCP Echo-Request LCP Echo-Reply PPPoE

20 20/31 PAP CHAP PPPoE PPPoE CHAP PPPoE _1 AC_1 CHAP PPPoE PPPoE _1, AC_1 LAN ID, PPPoE PPPoE IP PPPoE PPPoE _1 AC_1 LCP Echo-Request LCP Echo-Reply PPPoE LAN Ping PPPoE _1 LAN PC_1 AC_1 PC_1 Ping ICMP ICMP (, ) FTP AC_1 PC_1 FTP PPPoE _1 LAN PC_1(FTP ) FTP GET( ), PUT( ) (, ) GET( ), PUT( )

21 21/31 PPPoE AC_1 PPPoE _1 LCP Terminate-Request PADT PPPoE PADT PPPoE AC_1, PPPoE _1 LAN AC_1 PPPoE _1 PPPoE PPPoE _1 LCP Echo-Request LCP Echo-Reply PPPoE PPPoE AC(AC_2)

22 22/31 PPPoE :AC: NAT AC S/W Version (PPPoE ) ( S/W Version ) No. PPPoE PPPoE PPPoE S/W Version A-1 LAN IP Discovery Stage A-2 Service-Name TAG A-3 AC-Name TAG PPP Session Stage A-4 LCP MRU A-5 PAP A-6 ID A-7 A-8 NCP PPPoE IP IP A-9 NAT (PPPoE ) No. PPPoE PPPoE PPPoE PPP Session Stage B-1 CHAP B-2 ID B-3

23 23/31 (AC ) No. AC AC S/W Version C-1 C-2 PPPoE IP LAN( PC) IP Discovery Stage C-3 Service-Name TAG C-4 AC-Name TAG PPP Session Stage C-5 LCP MRU C-6 PAP C-7 PPPoE ID C-8 PPPoE C-9 NCP PPPoE IP C-10 PPPoE NAT (AC ) No. AC AC PPP Session Stage D-1 CHAP D-2 PPPoE ID D-3 PPPoE D-4 NCP PPPoE

24 24/31 PPPoE NAT AC PPPoE F AC S/W Version No. PPPoE S/W Version PPPoE E-1 ID E-2 LCP MRU AC Request Ack Nak E-3 PAP PAP E-4 PPPoE IP PPPoE LCP Echo Request/Reply E-5 PPPoE Ping E-6 Ping FTP E-7 FTP GET( ) (kbyte/s) E-8 FTP PUT( ) (kbyte/s) PPPoE PC AC PC Ping PPPoE PC AC PC GET ( ) PPPoE PC AC PC PUT ( )

25 25/31 E No. S/W Version PPPoE E-9 PPPoE PPPoE E-10 ID E-11 CHAP CHAP E-12 PPPoE AC IP IP PPPoE LCP Echo Request/Reply E-13 PPPoE Ping E-14 Ping FTP E-15 FTP GET( ) (kbyte/s) E-16 FTP PUT( ) (kbyte/s) PPPoE PC AC PC Ping PPPoE PC AC PC GET ( ) PPPoE PC AC PC PUT ( ) PPPoE E-17 PPPoE

26 26/31 FPPPoE AC NAT Ping FTP GETPUT kbyte/s AC ( ) PPPoE ( S/W Version ) ( ( S/W Version ) (GET: ) ) (PUT: ) (GET: ) (PUT: ) (GET: ) (PUT: ) (GET: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: ) (GET: ) (GET: ) (GET: ) (GET: ) (PUT: ) (PUT: ) (PUT: ) (PUT: )

27 27/31 LAN

28 28/31 1 PPPoE RFC 2516 Discovery Stage(PPPoE AC) 1 0x8863 E-1,K-1 2 MAC MAC 3 Ver 0x1 4 Type 0x1 PADI (PPPoE ) 5 MAC 0xffffffffffff 6 Code 0x09 7 ID0x Service-Name TAG ADSL 0x00 PADO (AC) 9 MAC PPPoE E-1,K-1 MAC 10 Code 0x07 11 ID0x AC-Name TAG AC PADR (PPPoE ) 13 AC-Name Service-Name PADO 14 MAC AC MAC E-1,K Code 0x19 16 ID0x Service-Name TAG PADS (AC) 18 Code 0x65 E-1,K-1 19 ID 20 Service-Name TAG 21 Service-Name-ErrorAC Service-Name ID0x0000 PADT (PPPoE AC) 22 MAC PPPoE AC E-9,17 MAC K-10,19 23 Code 0xa7 24 ID 25 TAG

29 29/31 26 PADT PPP TAG (PPPoE AC) 27 0x0000End-Of-List 28 0x0103Host-Uniq 29 0x0104AC-Cookie(AC ) 30 0x0105Vendor-Specific 31 0x0110Relay-Session-ID 32 0x0202AC-System-Error(AC PADS ) 33 0x0203Generic-Error PPP Session Stage(PPPoE AC) 34 0x8864 E-2,K-3 35 Code 0x00 36 IDDiscovery Stage E-1,2 ID K-2,3 LCP 37 Maximum-receive-Unit(MRU)1492 E-2 ADSL K-3 MRU AC LCP Echo-Request E-5,13 PPPoE K-6,15 39 PPPoE PADI PADO 40 PPPoE PADR PADS 1661 LCP 1 PPP 0xc021 E-2,K-3 2 Configure-Request 3 Configure-Ack 4 Configure-Nak 5 Configure-Reject 6 Terminate-Request E-9,17 K-10,19 7 Terminate-Ack 8 Code-Reject 9 Protocol-Reject 10 Echo-Request E-5,13 K-6,15 11 Echo-Reply 12 Discard-Request 13 Identification 14 Time-Remaining 15 Restart-Timer 16 Max-Terminate 17 Max-Configure

30 30/31 18 Max-Failure LCP 19 Maximum-Receive-Unit(MRU) E-2,K-3 20 Authentication-Protocol 21 Quality-Protocol 22 Magic-Number 23 Protocol-Field-Compression 24 Address-and-Control-Field-Compression(ACFC) 25 FCS-Alternatives RFC1570 PPP LCP Extensions 26 Self-Describing-Padding RFC Callback RFC Compound-Frames RFC Password (PAP) 1 PPP 0xc023 E-3,K-4 2 Authenticate-Request 3 Authenticate-Ack 4 Authenticate-Nak 1994 Challenge-Handshake (CHAP) 1 PPP 0xc223 E-11,K-13 2 Challenge AC 3 Response 4 Success 5 Failure 1332 IPCP 1 PPP 0x8021 E-4,12 K-5,14 2 Configure-Request 3 Configure-Ack 4 Configure-Nak 5 Configure-Reject 6 Terminate-Request 7 Terminate-Ack 8 Restart-Timer 9 Max-Terminate 10 Max-Configure 11 Max-Failure IPCP 12 IP-Compression-Protocol 13 IP-Address E-4,12 K-5, IP 1 PPP 0x0021 E-6,7,8,14, 15,16 K-7,8,9,16, 17,18

31 31/31 NAT AC PPPoE

32 1/1

2/ PPPoE... 9 AC(Access Concentrator) PPPoE PPPoE Ping FTP PPPoE

2/ PPPoE... 9 AC(Access Concentrator) PPPoE PPPoE Ping FTP PPPoE PPPoE HATS LAN 2/27... 4... 5... 5... 6... 7... 7... 8... 9 PPPoE... 9 AC(Access Concentrator)... 9... 10 PPPoE... 10 PPPoE... 11 Ping... 12 FTP... 12 PPPoE... 12... 14... 14... 16 PPPoE... 17 3/27 PPPoE...