Edgewater Networks 4300T Instrukcja Użytkownika Pobierz pdf (Strona 9)

Local Area Network (LAN) Architecture

Page 9 of 51

Network 2.1 - Flat LANs, integrated EdgeMarc w/DMZ

EdgeMarc model supported

• 4300T

• 4500E, 4500T4

Topology Characteristics

• EdgeMarc provides ALG functionality to phones

• EdgeMarc provides NAT, Firewall, Traffic Shaping, and DHCP to PCs and phones

• Phones and PCs share same IP subnet, assigned by DHCP

• EdgeMarc is SIP Proxy to phones

• The EdgeMarc provides “Static NAT” mappings in DMZ to the publicly-accessible servers OR provides

public addresses to servers.

• If Static NAT, then individual IP ports can be statically mapped to the servers, such as port 25 (SMTP)

and port 80 (WWW).

• Servers are firewalled from other IP ports (optional)

• WAN interface has at least one IP address:

• The EdgeMarc is assigned one IP address from the WAN subnet

• Other public address(es), can be routed or bridged to LAN-side servers, if desired.

• EdgeMarc LAN interface uses two VLANs

o One VLAN with a private subnet for phones and PCs. This LAN uses standard 802.1 (untagged)

frames.

o Another VLAN with a separate subnet for servers. This LAN uses standard 802.1 (untagged)

frames.

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Edgewater Networks 4300T Instrukcja Użytkownika Strona 9