Product specifications

CDD-562L/564 Demodulator with IP Module Revision 1
IP Module Ethernet Interface Overview MN/CDD564L.IOM
6–3
6.2.7 IGMP Support for Multicast
IGMP is a standard feature in the demodulator. If enabled as an IGMP client, it responds to IGMP
queries for the configured multicast routes. If enabled as an IGMP server, it generates IGMP queries
and transmits multicast traffic per IGMP clients’ request. If there are no active IGMP clients on the
LAN, it will stop forwarding the multicast traffic (received from the satellite) to the LAN.
6.2.8 Static IP Routing for Unicast and Multicast
Up to 256 static routes can be entered into the demodulator to direct IP traffic to another device
on the local LAN.
6.3 Demodulator Features
Enhancing the demodulator performance is easy. Additional features can be added quickly on
site, using the FAST access code purchased from Comtech EF Data. To enable these features,
obtain and enter the code as outlined in Appendix X. FAST ACTIVATION PROCEDURE.
• 3xDES Data Encryption
• IP Header Compression
• Payload Compression
6.3.1 3xDES Encryption with Ability to Change Keys
The demodulator optionally supports 3xDES-128 (using NIST certified 3x core) decryption for
the highest-level security. For link encryption, each unit supports eight decryption keys.
6.3.2 IP Header Compression
Header Compression also is an optional feature of the demodulator. The demodulator supports
Header Compression for the following Ethernet and Layer 3 & 4 Headers:
Supported Ethernet Headers
Ethernet 2.0
Ethernet 2.0 + VLAN-tag
Ethernet 2.0 + MPLS
802.3-raw
802.3-raw + VLAN-tag
802.3 + 802.2
802.3 + 802.2 + VLAN-tag
802.3 + 802.2 + SNAP
802.3 + 802.2 + SNAP + VLAN-tag
802.3 + 802.2 + SNAP + MPLS
Supported Layer 3&4 Headers
IP
TCP
UDP
RTP (Codec Independent)