Category: Articles

21

Jan2014

How does a Routing Table converge?

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The routing table is created over time as updates are sent by the Routing Protocol.  The example below shows a simulation of how a routing protocol would converge. Each Router has it’s directly connected routes associated with its interfaces, white background with cost = direct.  These networks were configured by network ... Read More
January 21, 2014Praveen Bahethi

19

Jan2014

What is Routing?

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Imagine having to travel in Paris, France, from the Vendome to the Eiffel Tower. This path would require us to use a map and review the streets and turns we would take. In networking, packets don't get a map and aren't smart enough to review the path ahead of time. ... Read More
January 19, 2014Praveen Bahethi

16

Jan2014

How to configure ASA security levels?

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INSIDE interface int vlan 1 nameif inside security-level 100 ip address 10.1.1.1 255.255.255.0 OUTSIDE interface interface Vlan 666 nameif outside security-level 0 ip address 1.1.1.1 255.255.255.248 DMZ interface interface vlan 300 nameif dmz security-level 50 ip address 172.16.1.1 255.255.255.0 ### <-PREVIOUS How to configure ASA security levels? NEXT-> What is NAT?  
January 16, 2014Praveen Bahethi

16

Jan2014

What are Cisco ASA firewall security levels?

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ASA Security Levels are used to define how traffic initiated from one interface is allowed to return from another interface.  Higher level security interfaces can initiate traffic to a lower level without an access list.  Any traffic returning from a higher level initiated communications are allowed to pass thru from lower ... Read More
January 16, 2014Praveen Bahethi