Hello, I need help with BGP upstream. I make a server up with my own AS and when I check looking glass, my routes appear with extra AS prepended. Like my AS 12345 becomes 12345 12345 12345 before upstream AS. Upstream says they do not touch path, but I see it with my eyes. I check my router, no prepend in my export policy. What can be? I am using Contabo for upstream. Regards.
Upstream keeps prepending my AS path like it's their job
Have you checked your own route-map upstream usually does not prepend customer paths unless you pay for optimization check your export side first
Can you check your route-map to upstream, maybe you have set prepend there but forget. I have done this before, slow-slow check the konfigurasi. Thank you.
The route map on yr edge ruter check the as path list maybe yuo copyd the AS nubmer three tiems in the set aspath prepend line I did this once runs words together sometimes wkward typo but you figure it out he says
The Typo Tommy is Right. Check The Route Map on The Edge. I See Many People Copy The Same As Number Three Times by Accident. Why Do We Not Check This First.
Contabo doesn't prepend on their standard transit. Check your export again.
I had the same thing with my route-map last month