ZyXEL Communications VMG1312-B Series, Руководство пользователя

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Chapter 6 Broadband
VMG1312-B Series User’s Guide
93
I f you select AD SL ove r ATM as t he int erface t ype, t he following screen appears.
Figure 22 Bridge Mode ( ADSL over ATM)
The following t able describes t he fields in t his screen.
Table 10 Bridge Mode ( ADSL over ATM)
LABEL DESCRIPTION
General
Act ive Select t his t o act ivat e t he WAN configurat ion set t ings.
Nam e Ent er a service nam e of t he connect ion.
Type Select AD SL ov e r ATM as t he int erface for which you want t o configure here. The Device
uses t he ADSL t echnology for dat a t ransm ission over t he DSL port .
Mode Select Br idge w hen your I SP pr ovides you m or e t han one I P address and you want t he
connect ed com put ers t o get individual I P address from I SP’s DHCP server direct ly. I f you
select
Br idge , you cannot use rout ing funct ions, such as QoS, Firewall, DHCP server and
NAT on t raffic from t he select ed LAN port ( s) .
ATM PVC Configurat ion ( These fields appear w hen t he Ty pe is set t o AD SL ov e r ATM .)
VPI The valid range for t he VPI is 0 t o 255. Ent er t he VPI assigned t o you.
VCI The valid range for t he VCI is 32 t o 65535 ( 0 t o 31 is r eser ved for local m anagem ent of ATM
t raffic) . Ent er t he VCI assigned t o you.
DSL Link Type This field is not edit able. The select ion depends on t he set t ing in t he En ca psu la t ion field.
EoA ( Et hernet over ATM) uses an Et hernet header in t he packet , so t hat you can have
m ult iple services/ connect ions over one PVC. You can set each connect ion t o have it s own
MAC address or all connect ions share one MAC address but use different VLAN I Ds for
different services. EoA support s ENET ENCAP ( I PoE) , PPPoE and RFC1483/ 2684 bridging
encapsulat ion m et hods.
PPPoA ( PPP over ATM) allows j ust one PPPoA connect ion over a PVC.
I PoA ( I P over ATM) allow s j ust one RFC 1483 rout ing connect ion over a PVC.