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creating a list of 'expected' receive routes and expected 'send' routes is fairly easy to create. aka outbound and inbound prefix lists, I quickly googled and f
by fosco 9y ago
creating a list of 'expected' receive routes and expected 'send' routes is fairly easy to create.
aka outbound and inbound prefix lists, I quickly googled and found the following config [0] that shows them 'advertising' their owned networks to prevent advertising networks they should not be and also accepting other networks they expect. this prevents and would have mitigated this sort of situation if implemented everywhere.
no I do not believe this to be difficult and anyone configuring BGP should have some awareness of most of its tools.
you can live your whole life without having to use a fire extinguisher or understanding the differences between a,b,c,d etc types but if you are a fire (man/woman) I expect you to understand which is used in what circumstance. if you do not you have the chance to spread a fire and make it worse then prevent it the same with someone who calls themself a network engineer.
[0] https://supportforums.cisco.com/legacyfs/online/legacy/0/5/4/19450-bgp_config.txt https://supportforums.cisco.com/legacyfs/online/legacy/0/5/4...