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saahil
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RX Attack / UDP with https?

Sat Mar 26, 2022 11:56 am

Hi Support, we are observing continous RX traffic.

Tried all forum scripts and options, its still going one.

screenshot attached
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rootemin
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:01 pm

Hi

wan interface drop incoming traffic only accept ports you allow

add action=drop chain=input in-interface-list=WAN
 
tangent
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:09 pm

Hi Support

This is a user-to-user forum, not official MikroTik support.

screenshot attached

Are you sure it isn’t a QUIC download?
 
saahil
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:17 pm

this is core router which has 2 upstream bgp

router os is 6.47.10

if I disable WAN, it will completely drop all traffic [aprox 900Mbps]
 
tangent
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:22 pm

Non sequitur. What I’m asking is, how do you know one of your users isn’t simply downloading a big file from this 41 address?
 
saahil
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:28 pm

Non sequitur. What I’m asking is, how do you know one of your users isn’t simply downloading a big file from this 41 address?
the IP that I am getting this RX traffic are already disabled. This is going on for the last 15-17 hours continous.

And none of my customers have plans bigger than 50Mbps
 
pe1chl
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:44 pm

No forum script or option, and no support for your router, will terminate a stream that others send to you.
You need to ask the support for the sending system. Good luck with that!
 
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junbr0
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Re: RX Attack / UDP with https?

Sat Mar 26, 2022 12:57 pm

you should block it before its enter your router.
call or email your uplink service provider, if that truly ddos or flooding.
 
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anav
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Re: RX Attack / UDP with https?

Sun Mar 27, 2022 11:55 pm

Without seeing your config, wont care to speculate

/export hide-sensitive file=anynameyouwish
 
saahil
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Re: RX Attack / UDP with https?

Mon Mar 28, 2022 12:46 pm

No forum script or option, and no support for your router, will terminate a stream that others send to you.
You need to ask the support for the sending system. Good luck with that!
I contacted upstream and they advised bgp-community blackhole, they shared with me the bgp community and I have created /32 prefix with the set-bgp-community which is my IP received all the 300Mbps capacity. It also shows on the bgp-advertisements. However when I torch the WAN interface I am still receiving the attack on my /32 IP.

Any other suggestions?
 
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Buckeye
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Re: RX Attack / UDP with https?

Mon Mar 28, 2022 1:38 pm

How I survived a DDoS attack youtube video by Jeff Geerling

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