Gateway 2701hgb Manual

							Management and Diagnostic Console
86
Enabling Security Features
The Security pane allows you to configure the gateway’s firewall to provide additional security features. 
Following are descriptions of the features.
Stealth Mode. Enabling Stealth Mode suppresses error responses (for example, TCP resets).
Block Ping. Enabling Block Ping blocks ping responses.
Strict UDP Session Control. Enabling Strict UDP Session Control prevents another source from 
“piggybacking” onto a UDP session.
Controlling Inbound and Outbound Traffic
If an Inbound box is checked, the firewall allows the corresponding protocol to pass through from the 
Internet to the network. If an Outbound box is checked, the firewall allows the traffic from the network to 
pass through the firewall to the Internet. You must click the 
Submit button for changes to take effect.
Disabling Attack Detection
By default, the 2Wire gateway firewall rules block the attack types listed in the Attack Detection pane. Some 
hosted applications require that the user open specific por ts (for example, TCP or UDP) to allow outside 
users to access their network. The Attack Detection pane allows you to configure the gateway’s firewall 
rules to allow traffic through on the specified por ts.
To disable attack detection for a specific por t, deselect the corresponding checkbox and click the 
Submit 
button.
Enabling Full Logging
To log all packets, check the Enable Full Logging checkbox.
Note: Allowing inbound traffic does not mean that the firewall automatically allows this type of 
traffic to pass through the firewall to the network. Even if a par ticular protocol/application type 
is allowed, the firewall still checks and blocks all unsolicited traffic from the Internet unless the 
firewall is configured to allow the traffic through using an application profile.
Note: When full logging is enabled, the gateway logs ever y packet. This will significantly 
reduce overall system performance because the log buffer capacity will be reached more 
quickly. 
						

							Management and Diagnostic Console
87
Voice Server - Summar y Page
The Voice Ser ver - Summar y page shows summar y information about the voice line(s) and their profile 
mappings.
Note: This link is present only if the 2Wire gateway is VoIP-enabled. 
						

							Management and Diagnostic Console
88
Voice - Configure Server Page
The Voice - Configure Ser ver page allows you to edit a profile that is associated with your VoIP ser vices, and 
is used primarily for test purposes. 
Figure 39. MDC Voice Configure Ser ver Page
Note: This link is present only if the 2Wire gateway is VoIP-enabled. 
						

							Management and Diagnostic Console
89
The Edit VoIP Settings panel displays the current SIP settings, and allows you to edit the settings. The 
following table describes the fields.
By default, the 
Show CID Names and Require Authentication checkboxes are checked. Show CID Names allows 
the gateway to display the configured outbound caller ID information. 
Require Authentication allows the 
gateway to use authentication when registering with the SIP proxy. 
Use 11-digit DIDs allows the gateway to 
automatically append a “1” to the registration phone number.
1.To add a new profile, choose the VoIP type from the pull-down menu and click ADD. To edit VoIP 
settings, click the box next to the profile name and click EDIT. To delete a profile, disable the VoIP 
ser vice by clicking the box next to the profile and click SUBMIT, then select DELETE and click SUBMIT 
again. 
2.If editing a profile, the Edit Profile Settings page opens.
3.Enter a name in the Profile Name field, then enter values in the Ser ver Settings fields as well as the 
fields for End Point Settings. Check the appropriate boxes for 11-digit DIDs, CID names, and 
authentication.
4.Click SUBMIT.  Server
IP Address Corresponds to the SIP proxy address.
Por t Corresponds to the SIP proxy destination port.
Number of Lines Displays the number of lines allowed on the gateway.
End Point
Domain Displays the IP domain of the SIP endpoint.
Register Expire Time Displays the default expiration (in seconds) of the SIP 
registration, and indicates how frequently re-registration will 
occur.
Register Retr y Inter val Indicates the period of time (in seconds) before the gateway will 
retr y registration after a failed attempt. 
						

							Management and Diagnostic Console
90
5.From the left navigation field under the Voice subheading, click Configure Line Association. The Voice - 
Associate Server page opens. 
6.Choose a line and associate it with a ser ver from the pull-down menu. If applicable, repeat the process 
with another VoIP line. Click SUBMIT.  
						

							Management and Diagnostic Console
91
7.The Voice Server - Summary page displays. Active profiles are listed, as are Line/Profile associations. 
To make any changes, return to the previous step. 
						

							Management and Diagnostic Console
92
Troubleshooting - DSL Diagnostics Page
The Troubleshooting - DSL Diagnostics page displays data associated with the 2Wire gateway’s DSL link.
Figure 40. MDC Troubleshooting DSL Diagnostics Page 
						

							Management and Diagnostic Console
93
Analyzing General Information
The General Information pane shows diagnostic information for the current DSL connection (or connection 
attempt). These values are also listed in the last row of the Training Histor y pane.
Item Description Value Comment
DSLAM Lists information about the 
DSLAM, including country, 
DSLAM vendor, and specifics.
DSL Line During line search, the value 
will alternate between 1 and 
2. The “Searching for DSL 
signal” comment appears until 
the ADSL protocol is 
confirmed with the DSLAM on 
the current line.1 or 2.
None or Searching for DSL 
signal
.
Downstream 
Rate CapThe configured DSL service 
downstream speed.Varies by ser vice 
provider.
Downstream 
Atten. at 300kHzThe measurement (in kbps) of 
the decrease in downstream 
signal strength.Varies by ser vice 
provider.
Uncancelled Echo Measure (in dB) of the 
uncancelled echo relative to 
the background noise on the 
line, indicating how much the 
uncancelled echo is affecting 
DSL performance.Appropriate values 
usually range 
between -25dB and 
-6dB. A positive 
value (for example, 
+12) could 
indicate the 
presence of an 
unfiltered 
telephony device 
and/or an alarm.
Ok or Suspicious - check 
phone filters and alarm
.
VCXO Frequency 
OffsetIndicates the difference 
between the gateway’s and the 
DSLAM port’s cr ystal 
frequency in par ts per million 
(ppm).The ideal value is 
zero (0). The 
maximum 
difference should 
be less than 150 
ppm.
Ok or Suspicious - 
hardware frequency 
mismatch
.
Final Rx Gain Indicates the current receive 
gain setting (in dB).Dependent on DSL 
line length.
Ok or Suspicious - 
possible saturation
. 
						

							Management and Diagnostic Console
94
Reviewing Training Histor y
The Training History pane provides a record of the last 20 connection attempts. The current connection or 
connection attempt is displayed in the last row.Impulse Noise 
Comp. TonesIndicates the number of 
compensation tones on which 
impulse noise is detected. For 
non-interleaved lines with 
impulse noise, the connect 
rate will be lowered to avoid 
excessive errors on the line; 
however, impulse noise may 
vary with time, so connect 
rates may var y accordingly. 
Impulse Noise Compensation 
is currently disabled for 
interleaved lines.The ideal value is 
zero (0).
Ok or Suspicious - 
Impulse noise detected
.
Excessive 
Impulse NoiseIndicates to what degree 
impulse noise is present on 
the line.The ideal value is 
zero (0).
Impulse noise 
protectionMeasurement of how much 
impulse noise can be 
mitigated. Dependent on the 
current line configuration.
Delay of latency 
pathMeasurement of how much 
delay is introduced. 
Dependent on the current line 
configuration.
Item Description
Time Initially this field will display the time (since power on) in DAYS HH:MM:SS format, 
until the gateway can access the Internet and retrieve the current local time. 
Subsequently the time (since power on) is displayed in YY:MM:DD and HH:MM:SS 
format.
Line The line (1 or 2) on which the gateway is searching for a DSL signal.
Downstream
Rate The net user data rate (in kbps) for the connection.
Max 1 Maximum rate achievable at the time of the initial connection based on the line 
quality (specifically, the uncapped rate). Item Description Value Comment 
						

							Management and Diagnostic Console
95
Max 2 Latest estimate of maximum achievable rate adjusted for changing line conditions.
Max 3 Current or final estimated maximum achievable rate without impulse noise 
compensation.
Mgn 1 Noise margin (in dB) at the star t of the connection.
Mgn 2 Latest noise margin adjusted for changing line conditions since the connection was 
first established.
Attn Measured attenuation (in dB) of the line.
Pwr Transmit power (in dB).
CRCs Total uncorrected errors for this connection.
FECs Total corrected errors for this connection.
INP Impulse noise protection.
DLY Delay of latency path.
Upstream
Rate The new user data rate (in kbps) for the connection.
Max Maximum rate achievable at the time of the initial connection based on the line 
quality (specifically, the uncapped rate).
Mgn Noise margin (in dB) at the star t of the connection.
Attn Measured attenuation (in dB) of the line.
Pwr Transmit power (in dB).
CRCs Total uncorrected errors for this connection.
FECs Total corrected errors for this connection.
Mode The DSL mode used (G.DMT, T1.413, or G.LITE).
Vendor Vendor ID of the DSLAM (for example, ALCB indicates Alcatel DSLAM in G.DMT 
mode).
State The internal state of the modem. If there are repeated connection problems, 
technical support representatives can use this information to determine at what 
point during training the modem failed, or whether the modem is repeatedly failing 
at the same point. Item Description