cisco gigabit firewall

The basics of Cisco PIX Firewalls Cisco PIX Firewalls can protect various networks. There are pix firewalls for small home networks, as well as PIX firewalls for large parks or corporate networks. In the example of this article, we will set up a PIX type 501 firewall. PIX 501 is a firewall for small home networks or s

In many people's ideas, routers are routers and firewalls are firewalls. Both vrouters and firewalls can be used as egress gateways. The security of vrouters as gateways is poor, and the firewall is highly secure. In fact, for routers and firewalls, they can be regarded as a family. As a gateway, firewalls have routing functions. Why cannot routers have security functions? For routers and firewalls, they are all talented, but their respective fields a

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

This article mainly introduces the firewall security configuration for CISCO router IOS, and describes the NAT conversion function. I believe you have read this article to understand CISCO router IOS. Network security technologies include authentication and authorization, data encryption, access control, and security audit. The following types of security gateway

First, the user needs The user has a Cisco PIX 515E firewall, a netcom's export, and a telecom export. Now to implement the default are to go out of the telecommunications line, and access to Netcom's Web site using Netcom's line out. Ii. Key points of implementation 1, the first to collect Netcom's IP network segment (this can be searched on the network, or telecom friends want a); 2, in the routing aspect

Authen 0/s 0/s AAA Author 0/s 0/s AAA Account 0/s 0/s Among them, the most important thing is that Xlates is the number of changes generated per second; Connections is the number of established Connections; TCP Fixup is the number of TCP packets forwarded by the PIX per second; TCPIntercept indicates how many SYN packets per second have exceeded the initial value. 4. show blocks When used together with show cpu usage, you can determine whether the PIX is overloaded. When a data packet enter

primary and standby), this experiment because there is only one interface connected between the primary and standbyTherefore, this experiment can not be specified.Asa5508-active (config) #failover interface ip failover 172.17.1.1 255.255.255.0 standby 172.17.1.2 // The IP address is set on the port connected to interface 3 and can beArbitrarily set to your own defined IPAsa5508-active (config) #failover LAN key Cisco //config failover authentication

default10. Activate the external interface ciscoasa (CONFIG-IF) # No Shutdown11. Return to global configuration mode ciscoasa (config-if) # exit12. Start Web Vpnciscoasa (config) # webvpn 13. Allow VPN external access ciscoasa (CONFIG-WEBVPN) #enable outside14. Specify the location of the SSL VPN client (SSL VPN clinet,svc) file. ciscoasa (CONFIG-WEBVPN) # svc IMage disk0:/sslclient-win-1.1.2.169.pkg15. Enables the security appliance to download the syc file to the remote computer. ciscoasa (CO

, strange.Experiment Two: Range conversion1. Clear the object configuration from the previous experiment and review the validation:ASA (config) # clear Configure ObjectASA (config) # show Run ObjectASA (config) # show run NAT2. Configure network static NAT to convert the DMZ network 10.1.2.200-10.1.2.210 to the outside zone 202.100.1.200-202.100.1.210ASA (config) # object Network Out-poolASA (config-network-object) # range 202.100.1.200 202.100.1.210ASA (config) # object Network Dmz-yuanASA (con

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 169.254.0.15 255.255.255.0 standby 169.254.0.16Failover interface IP

is upSending, 100-byte ICMP echoes to 192.168.0.1, timeout is 4 seconds:?!!!!!!!!!!!!!!!!!!!Success rate is percent (19/20)5, execute the TFTPDNLD command, after execution shows the followingRommon #7 > tftpdnldROMMON Variable Settings:address=192.168.0.3server=192.168.0.1gateway=192.168.0.1port=management0/0Vlan=untaggedImage=asa708-k8.binconfig=Linktimeout=20Pkttimeout=4Retry=20TFTP [email protected] via 192.168.0.1!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!At this point, iOS is not loa

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 i

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 mask 255.255.255.0 Step 2: Create IKE Phase 1.

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

user name, password.Third, command deployment:1. Deploy the Aaa-server configuration on the ASA:ASA (config) # Aaa-server Zhou Protocol Tacacs +ASA (config-aaa-server-group) # Aaa-server Zhou (DMZ) host 10.1.2.254ASA (config-aaa-server-host) # Key Zhou2. ASA Test:ASA (config) # test aaa-server authentication Zhou username bb password bbbbServer IP Address or name:10.1.2.254 (timeout:12 seconds)Info:authentication SuccessfulNote: first half and 3-authenticated admin access: ACS linkage is the sa

The Cisco PIX Firewall installation process is as follows: 1. The PIX will be placed to the rack, after the detection of the power system connected to the power supply, and power on the host. 2. Connect the console port to the PC's serial port and run the HyperTerminal program from the console port into the PIX system; the system prompts pixfirewall>. 3. Input command: Enable, enter privileged mode, at t

Using the firewall and the memory pool MIB (using the Firewall and Memory pool MIBs) The Cisco firewall and memory Pool MIB allow you to poll for failover and system state. This section includes the following: o ipaddrtable notes (ipaddrtable notes) o Browse for failover status (viewing Failover status) o Verify memory