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
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 aspect
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 th
(config) # IP default-Gateway 192.168.8.1
M1
M1 (config) # int VLAN 1M1 (config-If) # IP add 192.168.8.1 255.255.255.0M1 (config-If) # No sh
Port ing on asa1
Asa1
Ciscoasa (config) # static (inside, outside) TCP int telnet192.168.8.8 Telnet netmask
255.255.255.255
Add an entry in the ACL to allow R1 to access port 23 of E0/1.Ciscoasa (config) # access-List Test permit TCP 12.0.0.1 255.255.255.255 12.0.0.2 255.255.255 EQ 23
Test results on r1
R1
R1 # telnet 12.0.0.2Trying 12.0.0.2... open
Us
Cisco's ASA Firewall is a stateful firewall that maintains a connection table (conn) about user information, by default the ASA provides stateful connections to TCP and UDP traffic, and is non-stateful to the ICMP protocol.The message traversal process for Cisco ASA is as follows:A new TCP message view to establish the
There are many VPN products on the Cisco ASA Web VPN configuration market and their technologies are different. For example, in the traditional IPSec VPN, SSL allows the company to achieve more remote users to access the VPN in different locations, this service enables more network resources to be accessed and has low requirements on client devices, reducing the configuration and operation support costs. Ma
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