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Cisco
Cisco Packet Data Gateway (PDG)
Guia De Resolução De Problemas
Cisco Cisco Packet Data Gateway (PDG) Guia De Resolução De Problemas
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Cisco ASR 5000 Series Network Address Translation Administration Guide ▄
OL-22992-01
C
ONTENTS
About this Guide ................................................................................................. v
Conventions Used .................................................................................................................................................... vi
Contacting Customer Support ............................................................................................................................... viii
Network Address Translation Overview ........................................................... 9
Supported Platforms and Products ......................................................................................................................... 10
Licenses .................................................................................................................................................................. 11
Supported Standards ............................................................................................................................................... 12
NAT Feature Overview .......................................................................................................................................... 13
NAT Realms ...................................................................................................................................................... 14
NAT IP Pool Groups ......................................................................................................................................... 15
NAT IP Address Allocation and Deallocation ................................................................................................... 16
NAT IP Address Allocation .......................................................................................................................... 16
NAT IP Address Deallocation ...................................................................................................................... 17
NAT Port-chunk Allocation and Deallocation .................................................................................................. 17
NAT Port-chunk Allocation .......................................................................................................................... 17
NAT Port-chunk Deallocation ...................................................................................................................... 17
NAT IP Address/Port Allocation Failure ...................................................................................................... 18
TCP 2MSL Timer .............................................................................................................................................. 18
NAT Binding Records ....................................................................................................................................... 19
NAT Binding Updates ....................................................................................................................................... 19
CoA NAT Query ........................................................................................................................................... 20
Firewall-and-NAT Policy .................................................................................................................................. 21
Disabling NAT Policy................................................................................................................................... 22
Updating Firewall-and-NAT Policy in Mid-session ..................................................................................... 22
Target-based NAT Configuration ................................................................................................................. 22
NAT Application Level Gateway ...................................................................................................................... 23
Supported NAT ALGs .................................................................................................................................. 24
EDRs and UDRs ................................................................................................................................................ 24
EDRs ............................................................................................................................................................. 24
UDRs ............................................................................................................................................................ 24
Bulk Statistics .................................................................................................................................................... 24
Alarms ............................................................................................................................................................... 25
Session Recovery and ICSR .............................................................................................................................. 26
How NAT Works ................................................................................................................................................... 28
NAT Configuration ............................................................................................ 33
Before You Begin ................................................................................................................................................... 34
Configuring the System .......................................................................................................................................... 35
Configuring NAT ................................................................................................................................................... 36
Enabling the ECS Subsystem and Creating the ECS Service ............................................................................ 37
Configuring Port Maps ...................................................................................................................................... 37
Configuring Host Pools ..................................................................................................................................... 38
Configuring IMSI Pools .................................................................................................................................... 38
Configuring Access Ruledefs ............................................................................................................................ 39
Configuring NAT IP pools/NAT IP Pool Groups .............................................................................................. 40
Configuring One-to-One NAT IP Pools /NAT IP Pool Groups .................................................................... 40
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