Dhcp options, Option Meaning | Nortel Networks MOG7xx, MOG6xx

The IP-related parameters of the WLAN Handsets 2210/2211 can be configured manually or through a DHCP Server (RFC 1541 and RFC 1533). The DHCP Server can be on either side of the firewall, according to the site administrator’s preference. The DHCP Server is optional if the WLAN handsets and WLAN IP Telephony Manager 2245 are statically configured.

Each wireless handset effectively uses two IP addresses in the wireless subnet. One is for the physical set, and one is the second alias IP address that is used on the WLAN IP Telephony Manager 2245 Server. A contiguous block of addresses, equal to the number of handsets supported, must be marked as unavailable for distribution when you allocate addresses in a subnet scope on the DHCP Server.

The DHCP Server can require specific configuration modifications when multiple WLANs are connected to a single Wireless Security Switch (WSS). Refer to the documentation that accompanies the specific WSS being used for any special DHCP configuration requirements.

The WLAN handset searches for server configuration in the options listed in Table 1. The wireless handset uses the DHCP options listed when DHCP use is enabled.

Table 1	DHCP options

Option		Meaning

1		Subnet mask

3		Default Gateway

6		DNS Server

15		Domain name

66		TFTP Server

128		Site specific

151		WLAN IP Telephony Manager 2245

191		Site specific

siaddr		Boot server or next server

When the patch is applied to Release 3.6, or when Release 3.7 or later is running, two new fields appear under Global options:

•DHCP Option 66 - This can be used to specify the address of the TFTP Server. If this Option is not present the phone will look at the Next server/ Boot server (siaddr) option for the address of the TFTP server.

•Vendor Specific Option 43, 128, 144, 157, 191, or 251 - Only one of these options is required. The DHCP Server encodes the Server 1 information using the same format as the IP Phone 2004. If the Server 2 information is also present in the option, it is ignored.

•DHCP Option 151 - This option contains the IP address of the WLAN IP Telephony Manager 2245. If Option 151 is not configured, the wireless handset performs a Domain Name Service (DNS) lookup of the name “SLNKSVP2”, if Options 6 (DNS Server) and 15 (Domain Name) are configured.

Overview

MOG6xx, MOG7xx specifications

Nortel Networks was a prominent player in the telecommunications industry, known for its innovative products and solutions. Among its offerings are the MOG6xx and MOG7xx series of voice over IP (VoIP) gateways, designed to enhance and facilitate voice communications over data networks.

The MOG6xx series, which includes models like MOG660 and MOG670, was introduced to serve as a bridge between traditional telephony and modern IP-based networks. These gateways feature advanced signaling and media capabilities that make them an essential tool for businesses looking to migrate to IP telephony. The MOG6xx series supports a wide range of protocols, including SIP, H.323, and MGCP, ensuring interoperability with various systems and devices.

One of the key characteristics of the MOG6xx series is its scalability. These gateways offer flexible capacity options that allow organizations to start with a smaller investment and expand as their communication needs grow. Additionally, the MOG6xx series is designed to support numerous simultaneous calls, ensuring that businesses can operate efficiently even during peak usage times.

The MOG7xx series, including the MOG770 and MOG730 models, builds upon the foundational technologies of the MOG6xx with enhanced features and capabilities. The MOG7xx series focuses on providing higher capacity and advanced functionalities, making it particularly suitable for larger enterprises or service providers. Key features include improved echo cancellation, advanced call routing, and enhanced security protocols to protect voice data from unauthorized access.

Both the MOG6xx and MOG7xx series leverage Nortel's expertise in voice quality assurance through integrated voice processing technologies. This ensures that calls maintain high audio quality, crucial for effective communication. Additionally, these gateways support various codecs to accommodate different network conditions, further enhancing their versatility.

In terms of management, both series are equipped with user-friendly interfaces and robust diagnostic tools that enable administrators to efficiently monitor and manage voice traffic. This not only simplifies troubleshooting but also assists in optimizing network performance.

Overall, the Nortel MOG6xx and MOG7xx series provide reliable, scalable, and flexible solutions for organizations looking to integrate voice communications with their data networks. Their support for industry-standard protocols, commitment to voice quality, and advanced feature set make them standout options in the increasingly competitive landscape of VoIP gateways.