The Comparing Configurations Method
Did you ever find yourself looking through a Highlights magazine as a child? This magazine often featured two similar pictures, and you were asked to spot the differences. This childhood skill can also prove valuable when troubleshooting some network issues. For example, imagine that you have multiple remote offices, each running the same model of Cisco router. Clients at one of those remote offices cannot obtain an IP address via Dynamic Host Configuration Protocol (DHCP). One troubleshooting approach is to compare that site’s router configuration with the router configuration of another remote site that is working properly. You can also look at the configuration stored in a document (Word, Notepad) to see ...
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