Company A Cisco asa5505 collapsed, fortunately there is a standby machine, but before the other people have used, do not know the login password, so take out the console line access to the standby 5505, re-power, press ESC at startup, then the prompt Rommon #0 >The value of the configuration register is 0x41 Rommon #0 >confreg 0x41Enter reboot, restart the device Rommon #1 >rebootThe process of entering a password is skipped after restarting the devic
This is certainly not the first article on "Quick Guide to building a VPN using Cisco devices, however, we still hope that this guide will become an all-in-one guide for users who use ASA 5505 devices to set up VPN and connect to the Internet.
The ASA itself has a setup wizard, but this wizard does not cover all aspects of work required by the user, and some step
Basic information:
WAN: 221.221.147.195 Gateway: 221.221.147.200 LAN: 192.168.0.1
There is a server in the Intranet, and the address is 192.168.0.10 port: 8089
Fault description: The Intranet can be normally connected to the server, and the Internet cannot be connected. Port ing has a problem.
Solution: a command line error has been fixed.
Key Issue: Use "static (inside, outside) 221.221.147.195 192.168.0.10 tcp 8089" ing.
The current configuration is as follows:
Topic Link: Click to open the linkTest instructions: Give two numbers n and M, n multiplied by its factor into a new value, the minimum number of times can be changed to M.Idea: Each time multiplied by the integer v has two requirements: 1. It is the factor of N; 2. It should be as large as possible.And because if n can finally reach m, it must be multiplied by the K times N, so as long as n can be divided by M, then each fetch GCD (n, m/n) on the line.See the code for details:#include HDU
Ciscoasa (config) # Crypto key generate RSA modulus 1024Specifies the size of the RSA coefficients, the larger the value, the longer it takes to generate RSA, the Cisco recommends using 1024.Warning:you has a RSA keypair already defined named Warning: You have an RSA key pair defined by the named Do you really want to replace them? [yes/no]: YDo you really want to replace them? [Yes/no]:yKeypair generation process begin. Please wait ...The start of the key pair generation process. Please wait ..
accessed through the extranet IP.To turn on NAT:Global (outside) 1 interfaceNat (inside) 1 192.168.3.0 255.255.255.0Do port mapping:static (inside,outside) TCP interface 192.168.3.222 3389 netmask 255.255.255.255To do access control for an external network port:Access-list outside_access Extended permit IP any anyAccess-group Outside_access in Interface OutsideThe above directive realizes, the external network user accesses the internal terminal through the public network IP, but the intranet u
Cisco ASA Advanced Configuration first, to prevent IP Shard Attack 1 , Ip the principle of sharding; 2 , Ip security issues with sharding; 3 , Prevention Ip Shards. these three questions have been described in detail before and are not introduced here. For more information, please check the previous article:IP sharding principle and analysis. Second, URL Filter Use ASA Firewall IOS the characteristics URL
One of the most important features for a firewall product is logging events. This blog will show you how to log management and analysis of the ASA, the principle and configuration of ASA transparent mode, and implement URL filtering using the iOS features of the ASA firewall.First, URL filteringWith the feature URL filtering of the
Currently, my company uses all static IP addresses. There is an ASA5505 firewall in the company, in this firewall, some users must be restricted from using certain applications, such as QQ farms. To implement these functions, we need to bind ARP to the ASA 5505 firewall, and then use the access control lists to restrict these IP addresses and MAC addresses. The specific configuration is very simple. Let's t
At present, the network used by my company is all static IP address, inside the company has a ASA5505 firewall, should lead the requirements, in the firewall to limit a part of users can not use certain applications (such as QQ farm, etc.), and the leader of the computer does not make any restrictions. To implement these features, we need to do an ARP binding above the ASA 5505 Firewall and then use the Acc
1. The targets of ASE and ASA are different.The Sybase Database Engine has three products:The ASA lightweight database server is suitable for mobile computing (PDA, mobile phones with operating systems, etc.), Embedded Computing (POS machines, routers, etc.), and working group-level OLTP environments, especially for mobile computing and Embedded ComputingASE enterprise and database server, suitable for ente
ASA-防火墙-cisco
The role of the ASA firewall1, in the network to isolate dangerous traffic, no point.The principle of the ASA firewall1. Distinguish different areas by security level: internal area, external area, demilitarized zone.By default: High-level traffic can go to lower levels,Low-level traffic can not go to high-level,The same level of unb
The global. Asa file is an optional file in which you can specify event scripts and declare objects with sessions and application scopes. Content of this file
It is used to store event information and objects globally used by applications. The file name must be global. Asa and must be stored in the Application
In the root directory. Each application can have only one global.
The global. Asa file is an optional file in which you can specify the event script and declare a session and ApplicationProgramScope object. Content of this fileIt is used to store event information and objects globally used by applications. The file name must be global. Asa and must be stored in the ApplicationIn the root directory. Each application can have only one global.
Topics:Handing fragmented traffic:reassemble all the fragments of a packet to inspect the contentsPrioritizng Traffic:Controlling traffic bandwidth:traffic policing traffic shapingPackets coming into a ASA may be fragmented or whole. The same security policies that inspect whole packets aren ' t as effective when inspecting fragments. An ASA can be configuredTo intercept packet fragments, and virtually rea
Release date:Updated on: 2013-06-27
Affected Systems:Cisco Next-Generation FirewallDescription:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2013-3382Cisco ASA Next-Generation Firewall is a Next-Generation Firewall product. It is an additional service module that extends the ASA platform.The implementation of Cisco ASA
Experimental topologySoftware version GN3 0.8.6 ASA image 8.0 (2)650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/76/D9/wKioL1ZdmSGAvspoAABLsjqDXwk949.png "title=" 9qzzvef@]278 ' U@5uoyg) 0m.png "alt=" Wkiol1zdmsgavspoaablsjqdxwk949.png "/>Experimental environmentR1 and R2 Simulation company intranet, R3 analog Internet equipment. ASA as a company export, implementing NAT address translationExperi
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