Version 6.6 5 Mediant 2000
User's Manual Contents
11.3 Configuring IP Network Interfaces ....................................................................... 106
11.3.1 Assigning NTP Services to Application Types ......................................................111
11.3.2 Multiple Interface Table Configuration Rules.........................................................111
11.3.3 Troubleshooting the Multiple Interface Table ........................................................112
11.3.4 Networking Configuration Examples .....................................................................112
11.3.4.1 One VoIP Interface for All Applications ................................................. 113
11.3.4.2 VoIP Interface per Application Type ...................................................... 113
11.3.4.3 VoIP Interfaces for Combined Application Types ................................. 114
11.3.4.4 VoIP Interfaces with Multiple Default Gateways ................................... 114
11.4 Configuring the IP Routing Table ......................................................................... 115
11.4.1 Interface Column ...................................................................................................117
11.4.2 Routing Table Configuration Summary and Guidelines ........................................117
11.4.3 Troubleshooting the Routing Table .......................................................................118
11.5 Configuring Quality of Service .............................................................................. 118
11.6 Disabling ICMP Redirect Messages ..................................................................... 120
11.7 DNS ...................................................................................................................... 120
11.7.1 Configuring the Internal DNS Table .......................................................................120
11.7.2 Configuring the Internal SRV Table .......................................................................122
11.8 Configuring NFS Settings ..................................................................................... 123
11.9 Network Address Translation Support ................................................................. 125
11.9.1 Device Located behind NAT ..................................................................................125
11.9.1.1 Configuring STUN ................................................................................. 126
11.9.1.2 Configuring a Static NAT IP Address for All Interfaces ......................... 127
11.9.1.3 Configuring NAT Translation per IP Interface ....................................... 127
11.9.2 Remote UA behind NAT ........................................................................................129
11.9.2.1 First Incoming Packet Mechanism ........................................................ 129
11.9.2.2 No-Op Packets ...................................................................................... 130
11.10 Robust Receipt of Media Streams ....................................................................... 130
11.11 Multiple Routers Support ...................................................................................... 131
11.12 IP Multicasting ...................................................................................................... 131
12 Security ............................................................................................................ 133
12.1 Configuring Firewall Settings ............................................................................... 133
12.2 Configuring General Security Settings ................................................................. 137
12.3 IPSec and Internet Key Exchange ....................................................................... 137
12.3.1 Enabling IPSec ......................................................................................................138
12.3.2 Configuring IP Security Proposal Table .................................................................139
12.3.3 Configuring IP Security Associations Table ...........................................................140
12.4 Intrusion Detection System .................................................................................. 144
12.4.1 Enabling IDS ..........................................................................................................144
12.4.2 Configuring IDS Policies ........................................................................................145
12.4.3 Assigning IDS Policies ...........................................................................................148
12.4.4 Viewing IDS Alarms ...............................................................................................150
13 Media ................................................................................................................ 153
13.1 Configuring Voice Settings ................................................................................... 153
13.1.1 Configuring Voice Gain (Volume) Control .............................................................153
13.1.2 Silence Suppression (Compression) .....................................................................154
13.1.3 Echo Cancellation ..................................................................................................154
13.2 Fax and Modem Capabilities ................................................................................ 155
13.2.1 Fax/Modem Operating Modes ...............................................................................156
13.2.2 Fax/Modem Transport Modes ...............................................................................156
13.2.2.1 T.38 Fax Relay Mode ............................................................................ 156
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