ER4240G 4-WAN Gigabit Broadband Gateway/Router is a purpose-built
gigabit solution designed for medium and large-sized Internet cafs,
enterprises broadband communities and schools which require multiple
connections. With the Freescale network processor and the leading
operating system ReOS SE, ER4240G delivers higher performance and higher
availability than most other routers.
In addition to the common
features such as NAT, firewall, bandwidth management, IP/MAC binding and
access control, ER4240G also provides abilities of high security, high
express forwarding, diagnosis and flexible management, which is the
ideal choice for high-load network.
ER4240G offers 4 gigabit LAN
ports, which can directly access to the Internal Gigabit backbone
network, meeting the demands of high transmission speed.
design offers multiple choices for ISP connections and real-time backup
and load balancing. Besides, it also supports policy-based routing of
4 gigabit LAN ports; Connect to the gigabit backbone network with
full-duplex gigabit wire speed. Meet the needs of Internet cafs and
enterprises which require high-speed data transmission.
various VPN functions such as IPSec, PPTP, which can be used alone or
combined; Support dynamic IP address VPN connections; Support
Site-to-site VPN, remote access VPN (client-to-site); VPN tunnels are
restricted to 50, up to 30 concurrent tunnels. IPSec provides features
of auto key (IKE) and manual key, ESP/AH protocols, DES/3DES/AES
encryption algorithm, MD5/SHA-1 hash algorithm, main mode and aggressive
mode, Anti-Replay and NAT Traversal.
4 WAN Ports and NAT
WAN ports are provided, which support mixed connections of DSL, fiber
optical and Cable Modem. Under the PPPoE mode, 3 dial modes are
provided: Always On, On Demand and Manual. Support Link Quality
Monitoring (LQM); Offer management of dialing time (start time and end
time), to prevent network waste from negligence. Under the DHCP mode,
MAC address modification and cloning are available.
ports design provides 4 Internet connections; Support load balancing
and real-time backup; Support network flow distribution based on
bandwidth ratio to optimize the bandwidth utilization; Support
policy-based routing of different ISPs.
NAPT/NAT, routing and hybrid mode, which meet the needs of complicated
networks; Support port forwarding and DMZ host for external services
like HTTP, telnet and FTP, etc; Support NAT re-routing, reverse NAT and
NAT ALG: FTP, PPTP and IPSec ESP, etc.
abilities of defense against internal/external attacks: ARP spoofing
attacks, port scanning, DoS/DDoS attacks, Worm.Blaster, Worm.Sasser, SQL slammer
, etc. Ensure the stability and security of your router and network.
packet filtering based on source/destination IP address, protocols,
ports, source/destination MAC address; Support application layer
filtering based on URL and keywords; Support schedule-based ACL; Control
the Internet access and protect the internal network from external
bandwidth control will optimize the bandwidth utilization. Restrict
software such as BT, P2P effectively. Enable the normal hosts to exceed
the max speed occasionally and reduce the speed of the hosts which
usually use P2P software.
Support bandwidth control based on
schedule; when the network is high loaded, bandwidth control will be
enabled to ensure all the users can receive rational bandwidth; while
the network is low loaded, bandwidth control will be disabled.
Therefore, administrator will easily maintenance the network and make
sure that all users can access to the Internet at high speed.
the max number of concurrent NAT sessions, TCP sessions, UDP sessions
and ICMP sessions, which will effectively prevent download software like
P2P from overloading and ensure the other hosts smooth connection by
stopping the PCs which are wasting bandwidth because of computer virus.
User Authentication and Billing
5830G supports a very simple management mechanism for User
Authentication. It offers 2 ways of authentication, PPPoE-Based and
Web-Based. With this function, the Administrator doesnt have to modify
any existing network or adding another authentication server.
The Administrator can easily set the avail