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
(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 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 AS
For many years, Cisco PIX has been a firewall established by Cisco. In May 2005, however, Cisco launched a new product, the Asa,adaptive security appliance, as an adaptive safety product. However, PIX is still available. I've heard a lot of people asking about the difference between the two product lines on a number of
For many years, Cisco PIX has been a firewall established by Cisco. In May 2005, however, Cisco launched a new product, the Asa,adaptive security appliance, as an adaptive safety product. However, PIX is still available. I've heard a lot of people asking about the difference between the two product lines on a number of
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 c
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 asa vpn xml Parser Denial of Service Vulnerability (CVE-2015-0677)Cisco asa vpn xml Parser Denial of Service Vulnerability (CVE-2015-0677)
Release date:Updated on:Affected Systems:
Cisco ASA 1, 5500
Description:
CVE (C
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
Cisco ASA failover Command Injection Vulnerability (CVE-2015-0675)
Release date:Updated on:
Affected Systems:Cisco ASA 1, 5500Description:CVE (CAN) ID: CVE-2015-0675
The Cisco ASA 5500 Series Adaptive Security Device is a modular platform for providing security and VPN se
Release date:Updated on:
Affected Systems:Cisco ASA 5500 Series Adaptive Security Appliance 8.0-8.4Description:--------------------------------------------------------------------------------Cve id: CVE-2011-3285
The Cisco ASA 5500 Series Adaptive Security Device is a modular platform for providing security and VPN services. It provides firewall, IPS, anti-X, a
When Cisco routers are routed first, when Nat first may be known, inside is routed first, outside is first Nat.Well, for Cisco ASA, it is not the case, most of the first to find the route if the data from inside, in both cases Nat will first route to confirm the interface.
Did the purpose NAT conversion
Static NAT session exists
Once you know th
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
1, the experimental topology diagram :650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/59/49/wKioL1TPCfbgwIOLAACCEDU0i5M014.jpg "title=" Untitled. jpg "alt=" wkiol1tpcfbgwiolaaccedu0i5m014.jpg "/>1. Experiment Description :R1 as a company's site 1, the internal 1.1.1.1/32 Server needs a company site 2 of the administrator to implement remote telnet of equipment management;R5 as a company's site 2, the internal 2.2.2.2/32 Server needs a company site 1 of the administrator to implemen
In this article, I'll briefly explain the Active/standby failover configuration on the Cisco ASA. The lab is do in GNS3.
Physical topology:
ConfigurationCiscoasa/act/pri (config) # sh run failoverFailoverFailover LAN Unit PrimaryFailover LAN Interface failover_stateless GIGABITETHERNET0/2Failover link failover_stateful gigabitethernet0/1Failover interface IP failover_stateless 169.254.0.15 255.255.255
Cisco ASA iOS upgrade or RestoreFirst, pre-upgrade preparation work1 , prepare the iOS file you want to upgrade and the corresponding ASDM file2 , set up TFTP on a computer, configure the directory, and connect to the firewall (assuming the computer IP is 192.168.1.2)Second, upgrade steps1 , Telnet on the ASAasa>en// Enter privileged modeAsa#conft// Enter configuration mode2 , viewing files on the
Cisco ASA iOS Upgrade or RestoreFirst, pre-upgrade preparation work1. Prepare the iOS files to be upgraded and the corresponding ASDM files2. Set up TFTP on a computer, setup the directory, and connect with the firewall (assuming the computer IP is 192.168.1.2)Second, upgrade steps1 , Telnet on the ASAasa>en//Enter privileged modeAsa#conft//Enter configuration mode2 , viewing files on the
In actual cases also encountered this kind of problem, the customer intranet has a server map on the Internet, extranet user access Global-ip no problem, but intranet users want to access Global-ip will not pass, typical is the user will intranet server made public network DNS a record, Both internal and external networks are accessed through domain names.JUNIPER series equipment including NETSCREEN/ISG/SSG no such problems, directly through the ordinary dip can be achieved, the subsequent produ
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