The Journey of a Network Engineer:

ACL

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October 19, 2011  3:27 AM

How to configure Lock-and-Key (dynamic ACL)?



Posted by: Sulaiman Syed
?, ACL, Cisco, Configure, dynamic, how, Lock-and-key, network, router, to

Dynamic ACL are very interesting. They provide temporary access at certain times for certain users. Basically, the user will telnet to the router. If the authentication passes, then router permits that IP to to access the internal parts of the network. First, we need to create access-list,...

May 16, 2011  12:49 PM

What is the difference between M1 and F1 Cisco Nexus Line cards?



Posted by: Sulaiman Syed
access, ACL, Cisco, DCNM, distribution, F1, Fabric, FabricPath, forwarding, IPv4, IPv6, M1, M1-XL, MAC, Nexus 7000, security group tags, SGT, Unicast, vlan, VSAN

Cisco Nexus series switches brought a new technology to the data center. The whole designed is changed from the Catalyst 6500 series. Nexus is no longer dependent on SUP's backplane, it is more like a midplane architecture. Let me elaborate a little on this, what that statement means that...


December 12, 2010  1:19 AM

How to manipulate BGP Routes – part 1



Posted by: Sulaiman Syed
ACL, Cisco, distribute-list, manipulate, map, PA, prefix-list, route, router

After knowing how BGP select the best route for the routing update, using the BGP PAs. The next step would be to manipulate these PAs to give the desired route for NLRI BPG mainly uses 4 variations to manipulate the routes:

  • neighbor distribute-list (standard ACL /...


October 1, 2010  10:55 AM

Policy Based Routing – Part 2



Posted by: Sulaiman Syed
access, ACL, based, list, map, PBR, policy, route, routing, vlan

In Policy Based Routing - part 1 I have explained why and how we can use PBR in production environment. Today, i shall post...


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