Huawei AR200 series - Page 9

4.4.5 Checking the Configuration.....................................................................................................................90
4.5 Configuring a DDNS Client.............................................................................................................................90
4.5.1 Establishing the Configuration Task.......................................................................................................90
4.5.2 Creating a DDNS Policy..........................................................................................................................91
4.5.3 Configuring a DDNS Policy....................................................................................................................91
4.5.4 Binding a DDNS Policy to an Interface..................................................................................................92
4.5.5 Checking the Configuration.....................................................................................................................93
4.6 Maintaining DNS..............................................................................................................................................93
4.6.1 Deleting Dynamic DNS Entries of DNS Clients.....................................................................................93
4.6.2 Deleting DNS Entries of the DNS Proxy or Relay..................................................................................94
4.6.3 Manually Updating a DDNS Policy........................................................................................................94
4.7 Configuration Examples...................................................................................................................................94
4.7.1 Example for Configuring a DNS Client..................................................................................................94
4.7.2 Example for Configuring DNS Proxy.....................................................................................................98
4.7.3 Example for Configuring a DDNS Client.............................................................................................100
5 NAT Configuration...................................................................................................................104
5.1 NAT Overview...............................................................................................................................................105
5.2 NAT Features Supported by the AR150/200.................................................................................................106
5.3 Configuring NAT...........................................................................................................................................109
5.3.1 Establishing the Configuration Task.....................................................................................................109
5.3.2 Configuring an Address Pool................................................................................................................110
5.3.3 Associating an ACL with an Address Pool...........................................................................................111
5.3.4 Configuring Easy IP..............................................................................................................................111
5.3.5 Configuring an Internal Server..............................................................................................................112
5.3.6 Configuring Static NAT........................................................................................................................112
5.3.7 Enabling NAT ALG..............................................................................................................................113
5.3.8 Configuring NAT Filtering....................................................................................................................113
5.3.9 Configuring NAT Mapping...................................................................................................................114
5.3.10 Configuring DNS Mapping.................................................................................................................115
5.3.11 Configuring Twice NAT.....................................................................................................................115
5.3.12 Checking the Configuration.................................................................................................................116
5.4 Configuration Examples.................................................................................................................................117
5.4.1 Example for Configuring the NAT Server............................................................................................117
5.4.2 Example for Configuring Outbound NAT.............................................................................................119
5.4.3 Example for Configuring Twice NAT...................................................................................................122
6 DHCP Configuration................................................................................................................125
6.1 DHCP Overview.............................................................................................................................................127
6.2 DHCP Features Supported by the AR150/200...............................................................................................127
6.3 Configuring a DHCP Server Based on a Global Address Pool......................................................................128
6.3.1 Establishing the Configuration Task.....................................................................................................128
6.3.2 Configuring an Interface to Select a Global Address Pool for IP Address Allocation..........................130
6.3.3 Configuring Global Address Pool Attributes........................................................................................130
Huawei AR150&200 Series Enterprise Routers
Configuration Guide - IP Service Contents
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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