Cisco Cisco Agent Desktop 8.5 Guia Da Instalação
Cisco CAD Installation Guide 7.1
90
November 2006
Issues
The VoIP Monitor service does not specify which NIC should be used when sending
out packets. This is not a problem when using a single NIC for both sniffing and
normal traffic. With two NICs, however, normal traffic should be restricted so that it
does not go through the NIC used for sniffing. Otherwise, the sniffed RTP streams of
a currently-monitored call might not reach the supervisor because the SPAN
destination port does not allow outgoing traffic.
out packets. This is not a problem when using a single NIC for both sniffing and
normal traffic. With two NICs, however, normal traffic should be restricted so that it
does not go through the NIC used for sniffing. Otherwise, the sniffed RTP streams of
a currently-monitored call might not reach the supervisor because the SPAN
destination port does not allow outgoing traffic.
To resolve this, use the route command to customize the static routing table so that
normal traffic does not go through the sniffing NIC. Contact your network
administrator for details.
normal traffic does not go through the sniffing NIC. Contact your network
administrator for details.
An alternative solution is to give the sniffing NIC an IP address that no other host on
the network uses, and a subnet mask of “255.255.255.0”. Leave the default gateway
field blank for this NIC’s TCP/IP binding.
the network uses, and a subnet mask of “255.255.255.0”. Leave the default gateway
field blank for this NIC’s TCP/IP binding.
Installing a Second NIC on a VoIP Monitor
Service Computer
Service Computer
This procedure applies only to computers running Windows 2000.
1. Install the second NIC in the computer.
2. Start the computer.
3. Make sure that neither adapter is using dynamic host configuration protocol
(DHCP) to get its IP address.
4. Give the adapters valid IP addresses.
5. Determine which of the two adapters is to be used for sniffing.
6. Connect the sniffing adapter with the switch SPAN port.
7. Connect the second adapter with a normal switch port that is not monitored
by the SPAN port.
8. Use the route command to customize the local routing table so that normal
traffic does not go through the sniffing adapter.
9. Verify that the sniffing adapter is not registered with DNS and WINS by using
the PING <local host name> command. This ensures that the local name
always resolves to the normal traffic card IP address.
always resolves to the normal traffic card IP address.
10. Using Windows Explorer, navigate to the C:\Program
Files\Cisco\Desktop\bin folder and double-click PostInstall.exe to start CAD
Configuration Setup.
Configuration Setup.
11. Select the VoIP Monitor Service window, and then choose the IP address of
the NIC you just installed from the drop-down list.
12. Click Apply to save your changes and then exit CAD Configuration Setup.