ADTRAN NetVanta 4305 User Manual Page 14

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14
www.adtran.com/router
800 615 1176
NetVanta Fixed-port Router Solutions
Secure Internet Access
NetVanta
®
Fixed-port Routers provide a robust,
cost-effective, secure Internet access solution to
protect corporate networks from security breaches.
These broadband access products provide a first line
of defense with a stateful inspection firewall and the
option to communicate through a secure Virtual
Private Network (VPN) tunnel. Together, these
dedicated devices reduce recurring Wide Area
Network (WAN) costs, improve data security,
increase network performance and availability,
and simplify overall network operations.
Equal Cost Load Balancing
and Failover
For the Small- to Medium-sized Business (SMB) that
needs guaranteed bandwidth, the NetVanta Series
can share bandwidth between two Internet Service
Providers (ISPs), by usingequal cost” load balancing.
This eliminates the need to purchase a rarely used,
dormant backup link as a dedicated disaster recovery
scheme. Data is transported to either ISP until one of
the connections is lost. Then, data is automatically
re-routed over the failover link, until service is
restored. This maximizes bandwidth, allows for full
usage of prepaid circuits, and provides a high-speed
disaster recovery scheme if needed.
Broadband
Modem
10/100Base-T
Dial-up
Connection
Multiple
NetVanta
VPN Clients
10/100Base-T
Up to 4
Up to 4
Cable/DSL
IP Phone
10/100Base-T
IP Phone
10/100Base-T
IP Phone
ADSL
ADSL
T1
10/100Base-T
10/100Base-T
LAN
Host Site
Fixed_port_routers_1_of_4
Up to 4
NetVanta 3430
NetVanta 3130
ST
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NetVanta 3120
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NetVanta 344
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Virtual Private Network (VPN)
Internet
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ISP A
Load Balancing
and Failover
Between ISP(s)
ISP B
10/100Base-T
10/100Base-T
10/100Base-T
10/100Base-T
LAN
Fixed_port_routers_2_of_4
NetVanta.150
Cable/DSL
Modem
Cable/DSL
Modem
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NetVanta 3120
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