asa firewall configuration

I. Overview: Today QQ received a friend's help, the following environment, looked at the ASA configuration, the strategy is full pass, incredibly unable to access, but also puzzled. If the use of GNS3 to build environmental testing, on both sides of the firewall grab packet, found that TCP three times handshake normal, but located inside the

ExperimentExperimental topology diagram:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/5C/15/wKioL1UaedbRN4XgAACgbIamcMM749.jpg "title=" 1.jpg " alt= "Wkiol1uaedbrn4xgaacgbiamcmm749.jpg"/>Lab Environment:Build a web site and DNS service on the server2008 Server , creating a domain name of benet.com and the accp.com two websites. Experimental requirements:First the client can access the two Web sites on the server, and after successful URL filtering on the

I. Overview: The acs4.x initial HTTP access Port is 2002, and subsequent ports are randomly changed by default from 1024~65535, It is not a problem to access the outside area from the inside area of ASA, but if you access inside from the outside area of the ASA, there is a problem and it is not possible to release all the acs4.x ports. Two. Basic ideas: A. Defining the range of changes in acs4.x dynamic

The IPSec VPN realizes the network expansion, the firewall realizes the control and the filtering to the network traffic, therefore has the influence to the IPSec VPN communication. The default ASA maintains a state session only for UDP/TCP traffic, and therefore discards the ESP traffic that is returned. There are two ways to solve the problem One uses ACLs to release ESP traffic. Two applications check

To view the current firewall's operating mode:ciscoasa# Show FirewallFirewall Mode:routerConfigure the firewall to transparent mode:Ciscoasa (config) # Firewall transparentConfigure the firewall for route mode:Ciscoasa (config) # Firewall routerPS: After configuring the transparent

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placed insideMatch Regex URL1ExitPolicy-map type Inspect HTTP http_url_policyClass Http_url_classDrop-connection LogDefines the rule detection class. Make the appropriate action to match or match the previous process(drop)ExitExitPolicy-map Inside_http_url_policyClass Tcp_filter_classInspect HTTP Http_url_policyDefine Policy-map Inside_http_url_policy, define the results of the above rules and traffic detection into a policy container (POLICY-MAP)ExitExitService-policy Inside_http_url_policy in

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ASA Port mapping: Map the host 192.168.169.2 in the DMZ to the interface address of the firewall outside interface:Set up hosts that need to be mappedObject Network Server1Host 192.168.169.2Set the ports that need to be mappedCiscoasa (config) # object service 3389Ciscoasa (config-service-object) # service TCP source EQ 3389Ciscoasa (config) # Object Service 5000Ciscoasa (config-service-object) # Service TC

ASA 551X Network speed limitThe speed limit for the entire segment can also be limited to 4M for a single IP instance in the network segmentAsa846-k8.bin Test OKObject-group Network Rate_limitNetwork-object 192.168.0.0 255.255.255.0Access-list rate_limit Extended Permit IP object-group rate_limit anyAccess-list rate_limit Extended Permit ip any object-group rate_limitClass-map map_rateMatch Access-list Rate_limitPolicy-map Map_rate_useClass Map_ratePo

;width:847px;height:275.518px; "Alt=" dfha.0zbbqaaek=1kp=1 Pt=0bo=igmnaqaaa "/>Found SRC is 202.100.1.1Immediately understand:outside.r1#ping 2.2.2.2 Source Loopback 0Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:Packet sent with a source address of 1.1.1.1!!!!!Success rate is percent (5/5), round-trip Min/avg/max = 16/25/40 msInside.r2#ping 1.1.1.1 Source Loopback 0Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is

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

NAT prior to IPSec features, configure the ASA8.4 twice NAT, so that both ends of the intranet can exchange visits. B. Because the target address of the twice NAT is the address of the other's private network, Pat's public network and twice Nat can coexist at the same time. Three. Test topology: Four. Basic configuration: A. Headquarters Server Router: Interface ethernet0/0 IP address 10.1.1.2 255.255.255.0 No shut IP Route 0.0.0.0 0.0.0.0

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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 Hostn

Network Topology 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/4B/F7/wKiom1Q2STWBG5RxAADqir0hadw389.jpg "Title =" 4.png" alt = "wkiom1q2stwbg5rxaadqir0hadw389.jpg"/> Set dynamic pat on the ASA firewall so that the Intranet can access the Internet through a public address The command is as follows: Ciscoasa (config) # NAT (inside) 11900001.0 255.255.255.0 Ciscoasa (config) # global

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 configu