On 6-9-2013 2:56, Roberto Nunnari wrote:
> Hi all.
> 
> I have a problem with my home internet connection.

Aha!

> My vdsl router gets on the wan interface about 40-50 requests per second
> on port 80 and when I configure it so that it forwards that traffic to
> my web server, the router can't bear the load and freezes after a few
> seconds. All that traffic is not normal.. it's a botnet attack.. on my
> server I have scripts that examines the logs and adds the violator IPs
> as DROP in iptables. After a week, this morning I counted over 140'000
> unique IP DROP entries! The server seems to face well the attack.. but
> when the load it's so high, the vdsl router just freezes.

It's running out of ram, all 8MB of it.

> So, I thought I may configure the vdsl router as a bridge and put a
> pfsense box in between the bridge and my home network.

Sane choice.

> Apart from the fact that yet I don't know how the router will behave
> when configured as a bridge (will it bear the network load? what will

Yes, it will work fine, it does not need to maintain any state that
consumes memory for forwarding traffic.

> happen to the four lan ports? only one will be left active?), I would

That depends entirely on the software in the modem, often all 4 stay
active, but you can only build one pppoe session.

> like to know how should I configure the pfsense box.. I mean.. would it
> be enough to just move the configuration from the vdsl router to the
> pfsense box? The vdsl router is now configured with PPPoE over PTM
> (POTS).. would it be fine if I configure pfsense as PPPoE on the wan
> interface?

Just PPPoE is fine.

Regards,
Seth
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