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DoS when having a VPN client (Draytek 2850 over VDSL)
- jm_paulin
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29 Jan 2013 09:49 #74988
by jm_paulin
DoS when having a VPN client (Draytek 2850 over VDSL) was created by jm_paulin
Hi,
One of our machine connects to a customer intranet using a dedicated AT&T VPN Client. We noticed that DoS where triggered on udp when that particular machine is downloading files from the customer intranet over the VPN. That was causing the connection to be very sluggish, and even drop.
I understand UDP is used by the AT&T VPN Client. So to work around the issue, I disabled the UDP flood defense in the DoS Setup age. But that concerns me. Is there a better way?
I am using a Draytek 2850 over VDSL (80/20)
Thanks
JM
One of our machine connects to a customer intranet using a dedicated AT&T VPN Client. We noticed that DoS where triggered on udp when that particular machine is downloading files from the customer intranet over the VPN. That was causing the connection to be very sluggish, and even drop.
I understand UDP is used by the AT&T VPN Client. So to work around the issue, I disabled the UDP flood defense in the DoS Setup age. But that concerns me. Is there a better way?
I am using a Draytek 2850 over VDSL (80/20)
Thanks
JM
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- voodle
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29 Jan 2013 18:10 #75002
by voodle
Replied by voodle on topic Re: DoS when having a VPN client (Draytek 2850 over VDSL)
It's the best way, the UDP flood defense is an indiscriminate filter and the only other way you could do it is to increase the packet threshold on it to something huge like 10,000. It's not so necessary as it once was now that the session count is much higher on the routers anyway (I think).
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- jm_paulin
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29 Jan 2013 18:33 #75004
by jm_paulin
Replied by jm_paulin on topic Re: DoS when having a VPN client (Draytek 2850 over VDSL)
Thx.
I guess I'll leave it like this for now...
JM
I guess I'll leave it like this for now...
JM
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