ZyXEL Communications IES-1248-71 User Manual page 45

IEEE 802.1x Port-based Authentication
The IES-1248 supports the IEEE 802.1x standard for centralized user authentication and
accounting management through an optional network authentication (RADIUS) server.
2684 Routed Mode
The IES-1248 can handle 2684 routed mode traffic.
Downstream Broadcast
The IES-1248 can block downstream broadcast packets from being sent to specified VLANs
on specified ports.
Management
• Remote configuration backup/restore and firmware upgrade
• SNMP manageable
• Text-based management locally via console port and remotely via telnet
• Editable plain text based configuration file
Security
• Password protection for system management
• VLAN
MAC (Media Access Control) Filter
Use the MAC filter to accept or deny incoming frames based on MAC (Media Access Control)
address(es) that you specify. You may enable/disable the MAC filter on specific ports. You
may specify up to ten MAC addresses per port.
MAC (Media Access Control) Count Filter
You can limit the number of MAC addresses that may be dynamically learned on a port. You
may enable/disable the MAC count filter on individual ports.
Static Multicast
Use static multicast to allow incoming frames based on multicast MAC address(es) that you
specify. This feature can be used in conjunction with IGMP snooping and IGMP proxy to
allow multicast MAC address(es) that are not learned by IGMP snooping or IGMP proxy.
IGMP Proxy
In a simple tree network, the system can proxy multicast traffic in order to improve network
performance.
IGMP Snooping
With IGMP snooping, group multicast traffic is only forwarded to ports that are members of
that group. IGMP Snooping generates no additional network traffic, allowing you to
significantly reduce multicast traffic passing through your IES-1248.
1. Up to eight channels on each DSL port at the time of writing.
IES-1248-71/73 User's Guide
Chapter 1 Getting to Know the IES-1248
45