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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
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
Cisco Firewall ASA Configuration case
Topology map
Requirements: Through Cisco Firewall ASA use intranet users can access the external network and the server in the DMZ, the server in the DMZ can be published to the network, for the extranet user access
A The use of
Cisco ASA L2TP over IPSEC configuration details
1. Create a VPN address pool
Ciscoasa (config) # ip local pool vpnpool 192.168.151.11-192.168.151.15 mask 255.255.255.0
2. Configure the Ipsec encryption algorithms 3DES and SHA.
Ciscoasa (config) # crypto ipsec transform-set TRANS_ESP_3DES_SHA esp-3des (esp-sha-hmac)
3. Set the IPSec transmission mode to transport.
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
Step 1 of Cisco ASA firewall VPN configuration: Create an address pool. To remotely access the client, you need to assign an IP address during logon. Therefore, we also need to create a DHCP address pool for these clients. However, if you have a DHCP server, you can also use a DHCP server. QUANMA-T (config) # ip local pool vpnpool 192.168.10.100-192.168.10.199 ma
connection type to remote access.Tunnel-group vpnclient general-attributes//Configuring the authentication method for this channel groupAddress-pool vpnclient//define the address pool usedDefault-group-policy vpnclient//define default Group Policy-----Set up authentication methods and shared keys-------------Tunnel-group vpnclient ipsec-attributes//Configure authentication method for IPSecPre-shared-key *//Pre-shared key for IKE connectionTelnet Timeout 5//telnet timeout settingSSH 0.0.0.0 0.0.
TopologyRequirement: You can use the Cisco Firewall ASA to access servers in the Internet and DMZ through the Intranet. servers in DMZ can be published to the network for access by Internet users.I. Use of Cisco simulated FirewallBecause we do not have real devices, we use a virtual system using the Linux kernel to simulate Cisco's firewall. The simulated firewal
Enter the pix 515e using the superuser (enable), the silent password is empty, change the password with the passwd command. Firewall ConfigurationThe following describes the basic configurations used in general.1. Create a user and change the passwordIt is basically the same as a cisco ios router.2. Activate the Ethernet portYou must use enable to enter, and then enter configure mode.Pix515e> enablePassword:Pix515e # config tPix515e (config) # interfa
Https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/security/configuration/guide/b_ Cisco_nexus_9000_series_nx-os_security_configuration_guide_7x/b_cisco_nexus_9000_series_nx-os_security_ Configuration_guide_7x_chapter_01.html
Feature
Description
Changed in Release
Where documented
IP ACLs
Added IPV6 Wildcard mask support for access lists a
the ports of the corresponding vswitch as required in table 1. To verify our configuration, you can use the show vlan command in privileged mode to display the configuration you just made and check whether it is correct.
The above describes the VLAN configuration of the Cisco Catalyst 1900 switch. The VLAN
Cisco Wireless AP Configuration Guide requirements in complex enterprise environments Overview: using Cisco AP to build an enterprise wireless LAN, users' laptops do not need to be added to the AD domain,You can log on to the wireless network. the user name and password of the domain are used for Logon. SSIDS hides the
Cisco routers use many methods in configuration. Using SSH instead of Telnet cisco makes it easier for us to understand the configuration of cisco routers and other knowledge points.
Replacing Telnet with cisco router
to say, after you set the password for level 1, you will be asked to enter the password next time you connect to the switch and enter K, this password is the password set for level 1. Level 15 is the privileged mode password that you enter after you enter the enable command.
Step 2: Set the VLAN name. Because the four VLANs belong to different switches, the command for VLAN naming is VLAN 'vlan No. 'name' vlan name ', the following code configures VLAN 2, VLAN 3, VLAN 4, and VLAN 5 on the Switc
Recently, a number of Cisco ucs c Series servers have been added. After two weeks of deployment and installation, the server can finally be tested. This document briefly introduces the network configuration of the Operating System (centos 6) in the Cisco UCS server. It can be simply considered that this article describes the network
With the development of the international interconnection Network, some enterprises have established their own intranet and connected with the Internet through a dedicated line. In order to ensure the security of intranet, it is necessary to use dedicated firewall computer to prevent illegal intrusion. The router firewall can only be used as a filter and cannot hide the internal network structure from the intruder's eyes. As long as a computer on the external network is allowed to directly acces
whether you have loaded an IPSec IOS image that supports SSH.
In our example, we will use the Cisco IOS command. Run the following command:Router> Show flashThis command displays the name of the loaded IOS image. You can use the result to compare the list of supported features of your supplier.After you verify that your device supports SSH, make sure that the device has a host name and a correctly configured host domain, as shown below:Router> config
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