Cisco ASA 5505 Quick Start Guide - Cisco
Cisco ASA 5505 Quick Start Guide
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Note Read the safety warnings in the Regulatory Compliance and Safety Information (RCSI), and follow proper safety procedures when performing the steps in this guide. See
for links to the RCSI and other documents.
The ASA ships with a default configuration that includes two preconfigured networks (the Inside network and the Outside network) and an Inside interface configured for a DHCP server. Clients on the Inside network obtain a dynamic IP address from the ASA so that they can communicate with each other as well as with devices on the Internet.
Step 1 Connect one end of an Ethernet cable (not provided) to Ethernet 0 on the ASA. (By default, Ethernet 0 is the Outside interface.) Connect the other end to a cable/DSL modem or gateway router (the Outside network).
Step 2 Connect your devices (such as PCs, printers, and servers) with Ethernet cables to Ethernet 1 through 7.
Note Connect a PC to the ASA so that you can run the Adaptive Security Device Manager (ASDM). See “.”
Step 3 Connect Power over Ethernet (PoE) devices (such as Cisco IP Phones or network cameras) with Ethernet cables to switch ports 6 or 7 (the only ports providing power to PoE devices).
If you connect a server (such as a web server) to the ASA, you can use ASDM to make services on that server accessible by internal and external users. See “.”
Step 1 Connect the power supply adaptor to the power cable.
Step 2 Connect the rectangular connector of the power supply adaptor to the power connector on the rear panel of the ASA.
Step 3 Connect the AC power connector of the power cable to an electrical outlet. (The ASA does not have a power switch. Completing this step powers on the device.)
Step 4 Check the Power LED on the front of the ASA; if it is solid green, the device is powered on.
Step 5 Check your management PC to make sure it received an IP address on the 192.168.1.0/24 network using DHCP.
Step 6 Check the LINK/ACT indicators to verify interface connectivity.
Each Ethernet interface has an LED to indicate a physical link is established. When the LED is solid green, a link is established. When the LED is flashing green, there is network activity.
If a LINK/ACT LED is not lit, the link could be down due to a duplex mismatch. If auto-negotiation is disabled, verify you are using a straight-through Ethernet cable.
For a description of all chassis components, see the hardware installation guide .
The ASA ships with a default configuration that, in most cases, is sufficient for your basic deployment. You configure the ASA by using ASDM. ASDM is a graphical interface that allows you to manage the ASA from any location by using a web browser.
However, changing certain settings is recommended or required. For example, you should change the following settings from their defaults:
The privileged EXEC mode (enable) password that is required to administer the ASA through ASDM and the CLI
When using the ASA as a VPN endpoint (using the SSL VPN features):
– The hostname, domain name, and DNS server names
– Outside interface IP address to a static address
– Identity certificate
– WINS names when access to Windows file shares is required
Use the Startup Wizard in ASDM to make these changes. See “.”
See the ASDM release notes
for the requirements to run ASDM.
Step 1 On the PC connected to the ASA, launch a web browser.
Step 2 In the Address field, enter the following URL:
https://192.168.1.1/admin
The Cisco ASDM web page appears.
Step 3 Click
Run Startup Wizard.
Step 4 Accept any certificates according to the dialog boxes that appear. The Cisco ASDM-IDM Launcher appears.
Step 5 Leave the username and password fields empty and click
The main ASDM window appears and the Startup Wizard opens. See “.”
Run the Startup Wizard to modify the default configuration so that you can customize the security policy to suit your deployment. Using the startup wizard, you can set the following:
Domain name
Administrative passwords
Interfaces
IP addresses
Static routes
DHCP server
Network address translation rules
and more...
Step 1 If the wizard is not already running, in the main ASDM window, choose
Wizards & Startup Wizard.
Step 2 Follow the instructions in the Startup Wizard to configure your ASA.
Step 3 While running the wizard, you can accept the default settings or change them as required. (For information about any wizard field, click
The Public Server pane automatically configures the security policy to make an inside server accessible from the Internet. As a business owner, you might have internal network services, such as a web and FTP server, that need to be available to an outside user. You can place these services on a separate network behind the ASA, called a demilitarized zone (DMZ). By placing the public servers on the DMZ, any attacks launched against the public servers do not affect your inside networks.
Step 1 In the main ASDM window, choose
Configuration &
Firewall & Public Servers. The Public Server pane appears.
Step 2 Click
Add, then enter the public server settings in the Add Public Server dialog box. (For information about any field, click
Step 3 Click
OK. The server appears in the list.
Step 4 Click
Apply to submit the configuration to the ASA.
You can configure VPN using the following wizards:
Site-to-Site VPN Wizard—Creates an IPsec site-to-site tunnel between two ASAs.
AnyConnect VPN Wizard—Configures SSL VPN remote access for the Cisco AnyConnect VPN client. AnyConnect provides secure SSL connections to the ASA for remote users with full VPN tunneling to corporate resources. The ASA policy can be configured to download the AnyConnect Client to remote users when they initially connect via a browser. With AnyConnect 3.0 and later, the client can run either the SSL or IPSec IKEv2 VPN protocol.
Clientless SSL VPN Wizard—Configures clientless SSL VPN remote access for a browser. Clientless, browser-based SSL VPN lets users establish a secure, remote-access VPN tunnel to the ASA using a web browser. After authentication, users access a portal page and can access specific, supported internal resources. The network administrator provides access to resources by users on a group basis. ACLs can be applied to restrict or allow access to specific corporate resources.
IPsec (IKEv1) Remote Access VPN Wizard—Configures IPsec VPN remote access for the Cisco IPsec client.
Step 1 In the main ASDM window, choose
VPN Wizards, then choose one of the following:
Site-to-Site VPN Wizard
AnyConnect VPN Wizard
Clientless VPN Wizard
IPsec (IKEv1) Remote Access VPN Wizard
Step 2 Follow the wizard instructions. (For information about any wizard field, click
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海不择细流，故能成其大。山不拒细壤，方能就其高。
ciscoasa防火墙怎么样查看设备状态
ciscoasa防火墙查看设备状态用什么方法最好呢?小编来告诉你!下面由小编给你做出详细的ciscoasa防火墙查看设备状态方法介绍!希望对你有帮助!
ciscoasa防火墙查看设备状态方法一：
show version
show processes cpu-usage
show processes memory
show route
show failover
show logging
ciscoasa防火墙查看设备状态方法二：
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为了找出原因，我们把设备一个一个的跳过，同时也要做一些相应的配置，非常麻烦。最后终于锁定了ASA5550与深信服，只要它们俩串在一条线路里就会发生该故障，而分别使用时都非常正常。经过排查，发现是两者的端口协议有问题，排查下来基本上有三个协议出了点问题老是断网，也就是相互之间不协调。
当然，排查出这个故障，已经花了好多的时间和心血。以前从来没有碰到过这样的一些问题，看似简单的解决方案都是在不断地学习中积累起来的。解决问题只用了一条命令，然而从发现问题，并不断的假设问题所在，耗费的时间精力是非常多的。
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