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CCNA Training-Network Address Translation

Network Address Translation (NAT) is a networking process which is used to remap a specific IP address space into another IP address space by modifying the information in the TCP/IP packet header while the packets are being transmitted across a routing device. E.g.(router, firewall etc). Usually the modification is done on the source IP address […]

Filed Under: CCNA Training Tagged With: ccna training, nat, network address translation

Access Lists and NAT on Cisco ASA Firewalls. Some Clarifications

Access Control Lists (ACLs) and Network Address Translation (NAT) are two of the most common features that coexist in the configuration of a Cisco ASA appliance. For both inbound and outbound access control lists, the IP addresses specified in the ACL depend on the interface where the ACL is applied. These IP addresses must be […]

Filed Under: Cisco ASA General Tagged With: acl, nat

Configuring NAT on Cisco IOS Routers

The depletion of the public IPv4 address space has forced the internet community to think about alternative ways of addressing networked hosts. Network Address Translation (NAT) therefore was introduced to overcome these addressing problems that occurred with the rapid expansion of the Internet. Even if NAT was suggested as a temporary solution, it has been […]

Filed Under: Cisco Routers Tagged With: configure nat on cisco router, dynamic nat, nat, nat overload, network address translation, pat, static nat

Configuring PPPoE for Cisco Router 520 and for series 850 and 870

The Cisco 520 Ethernet to Ethernet router can be used as a PPPoE Client (Point to Point over Ethernet) to connect a small office to a DSL service for Internet access. Also, using Network Address Translation (NAT), you can connect multiple computers to the Internet using the same router. The same configuration applies also for […]

Filed Under: Cisco Routers Tagged With: 500 router, cisco 520 router, cisco 850 router, cisco 870 router, nat, ppp over ethernet, pppoe

ASA Firewall NAT Control Feature

With the original PIX firewall models, all traffic traversing a Cisco Firewall between inside to outside (higher security level to lower security level) had to match a NAT rule, otherwise the traffic was blocked. For example, in order for an inside web client host to access an outside web server host, there should have been a NAT translation […]

Filed Under: Cisco ASA Firewall Configuration Tagged With: asa, cisco firewall, nat, nat-control

cisco asa firewall fundamentals ebook
Configuration Tutorial For
Cisco ASA 5500 and 5500-X Firewalls

(Covers Newest v9.x)
DOWNLOAD EBOOK HERE

cisco vpn configuration guide
VPN Configuration Guide For
Cisco Routers and ASA Firewalls

With FREE ASA 5505 Configuration Tutorial Bonus
DOWNLOAD EBOOK HERE

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About Networks Training

We Provide Technical Tutorials and Configuration Examples about TCP/IP Networks with focus on Cisco Products and Technologies. This blog entails my own thoughts and ideas, which may not represent the thoughts of Cisco Systems Inc. This blog is NOT affiliated or endorsed by Cisco Systems Inc. All product names, logos and artwork are copyrights/trademarks of their respective owners.

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