Cisco ASA Series Firewall CLI Configuration Guide. DNS Server and FTP Server on Mapped Interface, FTP Server is Translated (Static NAT. Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples. ASAv Deployment Configuration Work with the Configuration CLI Book 1: Cisco ASA Series General Operations CLI Configuration Guide, iv.
|Language:||English, Spanish, Dutch|
|Genre:||Health & Fitness|
|Distribution:||Free* [*Registration needed]|
This chapter includes tasks for starting your interface configuration for the ASA , including creating. VLAN interfaces and assigning them to switch ports. Cisco Security Appliance Command Line. Configuration Guide. For the Cisco ASA Series and Cisco PIX Series. Software Version Customer Order. Cisco ASA Series Configuration. Guide using the CLI. Software Version Customer Order Number: N/A, Online only. Text Part Number: OL
Since all the Objects we will create are hosts, the subnet mask will always be , which tells the ASA the object is referring to only one IP address. Your entries should resemble the following: 4 Once you have completed the above for all systems which are required to traverse the ASA, you are finished.
Congratulations, you have successfully created your Network Objects! The radial button for Use IP Address: should be selected. Click the icon just like in step 4, but for this step, ensure you selected the External network object created previously which corresponds to the Internal object you selected in step 4.
Repeat steps 1 5 for each system required to traverse the ASA. Congratulations, you have successfully configured your Access Rules! In most cases the ASA will automatically create the appropriate ACL entries during the while completing the previous sections of this guide. When you are finished the ACL Manager should now resemble the image from step 1.
Congratulations, your ACL Manager should now be appropriately configured!
NOTE: If you are unfamiliar with the terms described below or how to enter the appropriate configuration modes, you should probably not be modifying the firewall in this manner, please contact one of the firewall administrators for further assistance! Enter Global Configuration Mode on your Cisco device; you can confirm you are on the correct mode by the way the device name appears on screen.
Instead of having a web server on DMZ. Web etc will be able to initiate traffic also to the Inside network zone with the proper configuration. The rest are by default assigned to vlan 1. Get outside address and default gateway from ISP ip address dhcp setroute!
DMZ dynamic interface! This will allow Web Server access to Internet. Configure here the username and password for accessing the device username admin password secretpass privilege 15 12 Enjoy. The example below will work for any SBS version This means that we will need to configure port redirection on the ASA in order to redirect the required traffic to the internal SBS Server e. This is suitable for small businesses and SOHO environments and offers an economical solution with great features.
Depending on which services on the SBS you want to allow access from the Internet. In our example below we assume that we have a single static Public IP address Modify the ACL below!
Modify the commands below! Create static port redirections towards the internal SBS Server. Configure here the username and password for accessing the device username admin password secretpass privilege 15 16 Enjoy. Most often. Configure the outside MTU as since there is an extra 8-byte overhead for PPPoE mtu outside icmp unreachable rate-limit 1 burst-size 1 arp timeout !
Configure here the username and password for accessing the device username admin password secretpass privilege 15 19 Enjoy. The central Hub site and one Spoke site have static IP addresses. Do not translate VPN Traffic nat inside. Create objects with all local and remote LAN subnets object network obj-local subnet Configure and enable the Phase1 isakmp policy crypto isakmp identity address crypto ikev1 enable outside crypto ikev1 policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime 22 Enjoy.
Create a Phase 2 transform set for encryption and authentication protocols. The following tunnel group Configure and enable the Phase1 isakmp policy crypto isakmp identity address crypto ikev1 enable outside crypto ikev1 policy 10 authentication pre-share encryption 3des 24 Enjoy. Tunnel group with the central Hub site tunnel-group Create a Phase 2 transform set for encryption and authentication protocols.!
Configure and enable the Phase1 isakmp policy crypto isakmp identity address crypto ikev1 enable outside crypto ikev1 policy 10 authentication pre-share encryption 3des hash sha 26 Enjoy. Its successor. Create network objects for the local and remote subnets object network obj-local subnet PAT for the inside network object network internal-lan nat inside.
Define both a local and remote pre-shared keys. IKEv2 policy similar to Phase 1 in ikev1 crypto ikev2 policy 1 encryption aes 3des integrity sha md5 group 2 prf sha lifetime seconds crypto ikev2 enable outside telnet timeout 5 ssh timeout 5 console timeout 0 threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept! Allow ikev2 as tunnel protocol group-policy GroupPolicy1 internal group-policy GroupPolicy1 attributes vpn-tunnel-protocol ikev2 tunnel-group They must be reverse on the other site tunnel-group IKEv2 policy similar to Phase 1 in ikev1 crypto ikev2 policy 1 encryption aes 3des integrity sha md5 group 2 prf sha lifetime seconds crypto ikev2 enable outside telnet timeout 5 ssh timeout 5 console timeout 0 threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept 33 Enjoy.
The following configuration has several pre-requisite settings that need to be in place in order to work. You can have also certificates signed from a third party CA instead of selfsigned. Its important to configure a hostname and domain name since we will use certificates hostname vpnasa domain-name mycompany. The following is created automatically when you generate the self-signed certificate crypto ca certificate chain SELF-TP certificate ff a 0da f7 0d db e e6d79 f6d70 ee f6d31 a 86f70d01 e61 e6d f6d e79 2ef6d ed 5ad32 a d b e e 6df 37 Enjoy.!
Create ikev2 isakmp policy crypto ikev2 policy 1 encryption aes integrity sha group 5 2 prf sha lifetime seconds ! Create ikev1 isakmp policy crypto ikev1 policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime telnet timeout 5 ssh timeout 5 console timeout 0 threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept ssl trust-point SELF-TP outside!
Configure separate tunnel groups for each type of VPN! One important thing to keep in mind is that you must create an AD user account which has the privileges to login. In a regular site-to-site VPN scenario. It will show how to pass multiple networks inside a VPN tunnel. It disables the mechanism to automatically allow all VPN traffic. This command is important. One Outside. Also we will impose traffic restrictions to the two Internal Zones. Inside1 users will be allowed to access only Web and Email.
All access is banner motd monitored. DMZ dynamic interface 53 Enjoy. Allow ssh from zone inside1 ssh You can therefore deny access to website www.
There are a few methods to block access to websites. The second method blocking the IP with ACL will work only for simple websites which have a static IP but it will be difficult to work for dynamic websites such as Facebook.
In our example network below. From ASA version 8. Twitter etc which have many different IP addresses which change all the time. Block both the www and non-www domains object network obj-www. Create FQDN objects for website we want to block. Flag for inappropriate content. Related titles.
Jump to Page. Search inside document. Patricio Luis Ahumada Lazo. Paco Serrano Jimenez. Ubaid Zahoor Abbasi. Thien Nhan Vo Nguyen.
Lindsey Benter. Luu Tuong.