Comtech EF Data CDM-IP 300L - Manual (Page 169)

CDM-IP 300L IP-Centric Satellite Modem Rev. 1
CD/CDMIP300L.IOM
143
Menu Options/Fields Entry Description
IGMP I Toggles [Enabled] and [Disabled]
The receive portion of a CDM-IP will utilize the CDM-IP
as an IGMP server. The transmit portion of a CDM-IP
will utilize the CDM-IP as an IGMP client.
The IGMP Information Page configures the CDM-IP to
report an interest to join a Multicast group on an IGMP
server. The IGMP protocol is used to regulate Multicast
traffic on a LAN segment to prevent information of no
interest from consuming bandwidth on the LAN.
Downlink Route All
Available Multicast M Toggles [Enabled] and [Disabled]
Enabled tells the CDM-IP to route all Multicast packets
coming from the Satellite interface to the Ethernet LAN
regardless of the Route Table entries.
Disabled tells the CDM-IP not to automatically forward
all Multicast packets. This CDM-IP will only forward
multicast traffic received from the satellite to the
Ethernet port if the multicast route exists in the Route
Table.
Quality of Service (QoS) Q Toggles [Enabled] and [Disabled].
This feature must be purchased.
Enabled tells the CDM-IP to apply configured QoS rules
on all packets going out the Satellite Interface.
When Disabled the CDM-IP does not apply QoS rules
for outgoing packets.
Transmit 3xDES Encryption T Toggles [Enabled] and [Disabled]
This feature must be purchased.
Enabled allows the CDM-IP to assign a TX key to
encrypt packets for a specific route being sent over the
Satellite Interface.
When Disabled the CDM-IP cannot encrypt packets
being sent over the Satellite interface.
Receive 3XDES Decryption Read
Only
This feature must be purchased.
Available allows the CDM-IP to decrypt packets being
received from the Satellite Interface.
When Unavailable the CDM-IP cannot decrypt packets
received from the Satellite Interface. This option is auto-
sensed by a bit carried in packet headers. This option is
always available if the option is purchased.
Tx Header Compression H This option will compress headers. Headers available
for compression can be referenced in Section 1.4.3 IP
Header Compression. Note that in easyConnect
 mode
all Ethernet Headers will be compressed whether or not
this feature is enabled. In Router mode, this screen will
show Available, and the option must be enabled per
route in Route table.