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Configuring Quality of Service
Cisco ISA500 Series Integrated Security Appliances Administration Guide 163
4
Perform the following configuration tasks to give the voice traffic a higher priority:
• Go to the Networking > Routing > Static Routing page to add a static routing
rule as follows:
• Go to the Firewall > NAT > Advanced NAT page to add an advanced NAT
rule as follows to permit the voice and data traffic through the WAN port
(WAN1) of the security appliance:
• Go to the Networking > QoS > General Settings page to enable WAN QoS
on the security appliance.
• Go to the Networking > QoS > WAN QoS > Bandwidth page to specify the
upstream bandwidth for the WAN port.
• Configure WAN QoS for the outbound voice traffic. For complete details,
see Configure WAN QoS for Voice Traffic from LAN to WAN, page 164.
Destination Address voice_phone_ip
NOTE: In this case, you can manually create an
IP address object called “voice_phone_ip” with
the IP address 10.1.1.11 by selecting the Create
a new address option.
IP Address voice_switch_ip
NOTE: In this case, you can manually create an
IP address object called “voice_switch_ip” with
the IP address 192.168.75.200 by selecting the
Create a new address option.
Metric 1
Name voice_traffic_nat
Enable On
From Any
To WAN1
Original Source
Address
voice_phone_ip
Translated Source
Address
WAN1_IP