When using EIGRP Summary: On the router that performs the summarization, it's routing table will have entry listed as Null0 for the summary routes
And on the downstream routers, their routing table will only have the summaries - no reference to Null 0. However, the following paragraph is what I'm confused about:- By applying the longest match rule, the downstream routers will forward all destination prefixes using the summary address. Eventually, these routers will be forwarded to the router performing the summarization. The summarizing router will match the destination prefixes with their longer matching subnets. If any of the destination prefixes match the summary address only, the summarizing router will forward these packets to the null interface, and they will be discarded. But why / when would the destination prefixes match the summary address only?? Any help will be greatly appreciated. Best Regards, Hunt Lee IP Solution Analyst Cable & Wireless Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31256&t=31256 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
