cisco asa nat

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

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 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

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

address forwarding packet; In transparent mode, ASA serves as a two-tier device for purpose-based MAC Address forwarding data frames (no configuration NAT time). in the 8.0 in previous versions, the transparent mode does not support NAT , 8.0 and subsequent version support NAT configuration. If NATis configured, theA

When you connect a VPN site with an external company, the IP address segment of the company that was originally used to connect with the other party is forced to become another address segment due to a change in the company's internal network, however, it is difficult for the other company to negotiate with each other. It is true that VPN cannot be used. In the previous versions of ASA, there is no way to do this. You can only add a vro inside the

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.

Now that Cisco Nat is flexible, Can Linux implement it? The answer is yes! Linux netfilter is super flexible, and Linux Nat is not flexible because the iptables program is not flexible. xtables-Addons rawnat has taken an important step towards static Nat, iptables restricts the development of static

Cisco ASA webvpn Configuration I. Lab Environment Simulate Cisco ASA firewall on Vmware Network Environment external network 192.168.1.0 Internal Network 10.80.1.0 Configure Cisco ASA Ciscoasa (config) # confg t Ciscoasa (config

)Host 192.168.2.1ASA (config) # access-list Gdtel permit ip any to cancel the effect of the default deny of the last ACLASA (config) # Access-group Gdtel in interface outside call in entryASA (config) # Access-group Gdtel out interface inside call outInside#telnet 192.168.2.1Trying 192.168.2.1 ... OpenOutside>outside>enOutside>enablePassword:outside#conclusion, as long as the flow from the high security level, the formation of the Conn table, when the data returned, the equivalent of a more than

enable Nat control on the ASAExperimental requirements:1. Configure each routed interface IP,asa Interface2. Configure Dynamic Naton the Asa toenable R1 to telnet R4. 3. Dynamic PATis configured on the Asa, enabling R3 to telnet R4. 4. Configure routing to enable R2 to telnet R45. Configure enable

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 firewall configuration Experiment Experiment topology: 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/4C/9A/wKiom1RA11DBIRUbAAD3_HHGsI8477.jpg "Title =" empty "alt =" wkiom1ra11dbirubaad3_hhgsi8477.jpg "/> Basic configuration command: ASA Conf t Hostname ASA Int E0/0 Nameif inside Security-Level 100 IP add 192.168.1.5 255.255.255.0 No sh I

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

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