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tilt_error | 1 year ago

This is an interception scenario, no? If issued intentionally, traffic will pass through hardware in… unfriendly territory.

discuss

order

Arnt|1 year ago

Yes, but doing it intentionally isn't as simple as one might think. First, BGP generally prefers the shortest path and yours is going to be a little long, so unless the best original path is very long you need on some transit provider to use policy-based routing and trust you as transit. Second, if you want the traffic to pass through your hardware you have to have sufficient bandwidth, otherwise you'll just trigger packet loss and disrupt service (fine if disruption is your goal, not so fine if you want the traffic to pass through your hardware). Third, some people use signed routes, which also complicates your job.

workfromspace|1 year ago

About

> First, BGP generally prefers the shortest path and yours is going to be a little long, so unless the best original path is very long you need on some transit provider to use policy-based routing and trust you as transit.

the article states:

> The leaked route is likely preferable because of a localpref setting which would prefer sending traffic for free through a peer regardless of the AS path length, over paying to send traffic through a transit provider.