, DSL (Didital Subscriber Line), . . . DSL . 35.
( MAC-, IP- ).
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. 35. DSL-
DSL .
. - 2 /. . , , DSL-.
(ADSL) , . - ADSL:
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:
- Internet;
- .
( 8) Ethernet ADSL-.
.
NSG-800/maxA ( ())
ADSL. G.DMT G.lite, ( ) , RJ-11 . ADSL Ethernet 10BaseT. / - ( 4096 ),
: -, RIP1 RIP2, NAT DNS. ADSL .
ADSL- NSG-200/ADSL , ITU-T.
NSG-200/ADSL ADSL
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Prestige ( Zyxel).
:
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/. ZyNOS.
ADSL Prestige 642 + AES-100.
. : 8 / 640 /.
: IP- (NAT); ; PPTP.
: (. 36).
 |
. 36. DSL-
AES-100 - ADSL ATM , IP . AES-100 . ADSL , , Ethernet Ethernet- .
DSL- Prestige 1600
DSL- 2,3 /. , WAN- Ethernet- 10/100 M/.
: Prestige 1600 , . .
(routers)
, , . , , - , ().
OSI , . Cisco Systems.
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Cisco:
- , (. 37);
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- WAN interface card (WIC);
- ;
- ;
- CISCO IOS (Internetworking Operating System) ;
- , telnet.
 |
. 37.
Cisco
:
-, ();
- ;
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-;
- TACACS+, RADIUS, Kerberos;
- .
:
- (NAT PAT);
- IP- ( VPN Windows 95/ 98 Windows N);
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:
-- ;
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- .
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, .
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Cisco IOS, . , , , ..
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, .. . , (, WWW).
.
. 38 , , Source IP .
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. 38. NAT
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, . , ( , - , ).
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, . , /, .
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:
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:
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:
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- . . .
- 34.11-94 . . .
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. , . "-4" .
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