Cisco ASA 5506-X Configuration Guide

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Cisco ASA Series Firewall CLI Configuration Guide
Chapter 10 NAT Examples and Reference
DNS and NAT
Step 4 Create a network object for the inside IPv6 network, and configure dynamic NAT with a PAT pool.
hostname(config)# object network IPv6_INSIDE
hostname(config-network-object)# subnet 2001:DB8::/96
hostname(config-network-object)# nat (inside,outside) dynamic pat-pool IPv4_POOL
PTR Modification, DNS Server on Host Network
The following figure shows an FTP server and DNS server on the outside. The ASA has a static
translation for the outside server. In this case, when an inside user performs a reverse DNS lookup for
10.1.2.56, the ASA modifies the reverse DNS query with the real address, and the DNS server responds
with the server name, ftp.cisco.com.
Figure 10-22 PTR Modification, DNS Server on Host Network
ftp.cisco.com
209.165.201.10
DNS Server
Outside
Inside
User
10.1.2.27
Static Translation on Inside to:
10.1.2.56
1
2
4
3
Reverse DNS Query
209.165.201.10
Reverse DNS Query Modification
209.165.201.1010.1.2.56
PTR Record
ftp.cisco.com
ASA
Reverse DNS Query
10.1.2.56?
304002

Cisco ASA 5506-X Specifications

General

Model	ASA 5506-X
Firewall Throughput	750 Mbps
Maximum Firewall Connections	50, 000
Maximum VPN Peers	50
Integrated Ports	8 x 1 GE
Stateful Inspection Throughput	750 Mbps
Weight	4.4 lb (2 kg)
Firewall Throughput (Multiprotocol)	750 Mbps
Firewall Throughput (Application Visibility and Control AVC)	250 Mbps
Concurrent Sessions	50, 000
New Connections per Second	10, 000
IPsec VPN Throughput	100 Mbps
Interfaces	8 x 1 GE
Memory	4 GB
Flash Memory	8 GB
Form Factor	Desktop
VPN Throughput	100 Mbps
Maximum Concurrent Sessions	50, 000
New Sessions per Second	10, 000
Operating Temperature	32 to 104°F (0 to 40°C)
Storage Temperature	-13 to 158°F (-25 to 70°C)
Power Supply	External
Humidity	10% to 90% non-condensing