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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
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Chapter3 Configuring the Cisco ATA for H.323
Default Boot Load Behavior
•Cisco ATA Web Configuration Page, page 3-18—This section shows the CiscoATA Web
configuration page and contains a procedure for how to configure Cisc o ATA parameters using this
interface.
•Web Interface Access-Control Configuration, page 3-20
•Refreshing or Resetting the Cisco ATA, page 3-20—This section gives the procedure (via the Web
configuration page) for refreshing or resetting the Cisco ATA so that your most recent configuration
changes take effect immediately.
•Upgrading the H.323 Signaling Image, page 3-21—This section provides references to the various
means of upgrading your Cisco ATA signaling image.
Note The term Cisco ATA is used throughout this manual to refer to both the Cisco ATA186 and the
Cisco ATA188, unless differences between the Cisco ATA 186 and Cisco ATA188 are explicitly stated.
Default Boot Load Behavior
Before configuring the Cisco ATA, you need to know how the default Cisco ATA boot load process
works. Once you understand this process, you will be able to configure the CiscoATA by following the
instructions provided in this section and in the sections that follow.
All Cisco ATAs are shipped with a boot load signaling-protocol image. However, because this image is
not a fully functional signaling image, the image must be upgraded. The image is designed to be
automatically upgraded by a properly configured TFTP server. To configure the Cisco ATA to
automatically upgrade to the latest signaling image, see the “Upgrading the Signaling Image from a
TFTP Server” section on page 8-1.
In addition, the Cisco ATA obtains its configuration file during the boot load process.
The following list summarizes the default Cisco ATA behavior during its boot-up process:
1. The Cisco ATA uses the Cisco Discovery Protocol (CDP) to discover which VLAN to enter. If the
Cisco ATA receives a VLAN ID response from the network switch, the Cisco ATA enters that VLAN
and adds 802.1 Q VLAN tags to its IP packe ts. If the Cisco ATA does not receive a response with a
VLAN ID from the network switch, then the Cisco ATA assumes it is not operating in a VLAN
environment and does not perform VLAN tagging on its packets.
Note If your network environment is not set up to handle this default behavior, make the necessary
configuration changes by referring to the “Specifying a Preconfigured VLAN ID or Disabl ing
VLAN IP Encapsulation” section on page 3-3.
2. The Cisco ATA contacts the DHCP server to request its own IP address.
Note If your network environment does not contain a DHCP server, you need to statically configure
various IP addresses so that the Cisco ATA can obtain network connectivity. For a list of
parameters that you must configure to obtain network connectivity, see Table 3-5 on page 3-16.
For instructions on how to use the voice configuration menu, which you must use to perform this
configuration, see the “Voice Configuration Menu” section on page3-15.
3. Also from the DHCP server, the CiscoATA requests the IP address of the TFTP server.