88 ܚૅ
C ৹ࢨᇄ
Internet
PPPoE ఇሤ
ଚླྀࠒჃ
DSL לᇉࢷלచ֩
ISP ൔႬqၟขອഌ֩׈ؗ׈ོၴr
(PPPoE)dೆݘൔႬ
DSL לᇉࢷלచѭྷဵႬ ߀଄ӯވ૥ખণ৹ࢨᇄ
Internetĩ౬࿜ໝୡ֩
ISP ၟऩ׫
ൢڒႏۂൔႬ
PPPoE ৹ࢨd
႓ඃሤ
PPPoE ੗आķ
ምХݾ
ISP ุ܆֩Ⴌ߀଄ӯc૥ખၟࠧმ଄ڟ༄చ
(DNS) ֽᆺĥೆݘྷဵĦĥ౬ҙ
ᄋֿ
81 ှĦd
1ᄡ qອ઒rძᇆᇓĩ՚qཅ൙r֔ԟ൘Җ֊ᇓ࿎ಀ qୁࡽၟขອrd
2׈σ q
PPPoErĩ࿎ಀ q৹ࢨൔႬ
PPPoErd
3ࢀྔ༓ࡳೊདႏ֩ধ໎ᇓdೆݘୡ༔ະ׌଻ഌ֩ෲႹႬ߀׿ൔႬད๡֩৹ࢨٞ൘ĩ
౬࿎ಀ qխԩ૥ખrd
ቡဵཛྷᄡగײ၆۵
TCP/IP ႏႬӵ࿁ ĥೆ
Web ᛖযచࠋ׌ሴႳࡵӵ࿁Ħൌስײ
৹ࢨĩ౬׈σ q
PPPoE ࿎ཟrĩಚޮ࿎ᄸqྷဵൌስײ৹ࢨrd
4׈σq
TCP/IPrĩѭσᅺ
ISP ֩ථ଀՚qனᇆ
IPv4r֔ԟ൘Җ֊ᇓ࿎ಀqൔႬ
PPPr
ࠋq൱ײrdೆݘୡ՚
ISP ମ৞֢֨ਘ၆۵ࣥฃ֩
IP ֽᆺĩ౬࿎ಀq൱ײrѭᄡ
q
IP ֽᆺrধ໎ᇓࡳೊۂֽᆺd
CHLL3140Q41b.book Page 88 Friday,February 18, 2005 3:45PM