User's Manual 722 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
39.4 Pre-Configured IP-to-IP Routing Rules
For the CRP application, the IP-to-IP Routing table is pre-configured with IP-to-IP routing
rules. These rules depend on the configured Call Survivability mode, as described in
''Configuring Call Survivability Mode'' on page 719.
Note:
• The IP-to-IP Routing table is read-only.
• For accessing the IP-to-IP Routing table and for a description of its parameters,
see ''Configuring SBC IP-to-IP Routing Rules'' on page 656.
39.4.1 Normal Mode
The pre-configured IP-to-IP routing rules for the Normal CRP call survivability mode are
shown in the table below:
Table 39-2: Pre-Configured IP-to-IP Routing Rules for CRP Normal Mode
Index Source IP
Group /
Emergency
Request
Type
Destination
Type
Destination
IP Group
Destination
Address
Alternative Route
Options
1 * OPTIONS Dest
Address
- Internal Route Row
3 1 All IP Group 2 - Route Row
4 1 All IP Group 1 - Alternative
5 1 All IP Group 3 - Alternative
6 2 All IP Group 1 - Route Row
7
1
2 All IP Group 3 - Route Row
8 3 All IP Group 2 - Route Row
9 3 All IP Group 1 - Alternative
Note:
1. Index 7 appears only if the CRPGatewayFallback parameter is enabled (see
''Configuring PSTN Fallback'' on page 723). This routing rule is used if the device can't
find a matching destination user for IP Group 1 (User-type IP Group) in its registration
database. If the CRPGatewayFallback parameter is disabled and no matching user is
find, the device rejects the call.
39.4.2 Emergency Mode
The pre-configured IP-to-IP routing rules for the Emergency CRP call survivability mode
are shown in the table below:
Table 39-3: Pre-Configured IP-to-IP Routing Rules for Emergency Mode
Mode Index
Source IP
Group ID /
Emergency
Request
Type
Type
IP Group
ID
Address
Route
Options
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