DOS attack, What can i do?

[PlatinumGold]

I think i'm under a DOS attack. all my ethernet ports on my switch are flashing like crazy. they will do that for like 5 minutes then stabilize.

while they are flashing, i can't browse or anything on the internet.

i think it's a DOS attack, i'm not sure.

what can i do?

 

[StageLeft]

I'd reset the relay ports from 6-71. Also, open your entire TCP stack and dump it to the router switch. Then reboot and you should be good.

 

[hevnsnt]

lol..

Check the router logs and see whats up.. More than likely your provider is doing some kind of sweep/test of your equipment. (as long as you are at home and not at work)

 

[StageLeft]

If, after reboot, you're still having intermittent problems I'd wire up the hub and router to counter-sync to each others packet control. If you want to be really careful you can also secure your BIOL and IPX protocols against out-of-net traffic.

 

[DaWhim]

ddos attack? do you think you can change the ip? I guess I have been attacked once. lagging like crazy even I have 700kb/s for dl

 

[yruffostsif]

Or perhaps you are being pwned and attacking some lame website. Pull the plug.

 

[PlatinumGold]

Originally posted by: hevnsnt
lol..

Check the router logs and see whats up.. More than likely your provider is doing some kind of sweep/test of your equipment. (as long as you are at home and not at work)

Weird

when i first start up a browser, (i've got it set to google for my home page) the status bar says finding xxx.xxx.xxx.xxx, so the ip address is showing up, but page times out. 🙁

everything will time out for like a 5 minute period, then all of a sudden, everything works for like 3 minutes, then time out again.

btw, the router log shows nothing unusual, just the pages i've browsed recently. 🙁

 

[rudder]

Originally posted by: Skoorb
If, after reboot, you're still having intermittent problems I'd wire up the hub and router to counter-sync to each others packet control. If you want to be really careful you can also secure your BIOL and IPX protocols against out-of-net traffic.

pffft newb, the BIOL protocol has built in ipsec level 3 switching. No need to secure it against out-of-net traffic.

 

[dman]

Lately if I get my WinXP machine an IP via DHCP from my router, I'll get weird login pop-ups. For example, using network neighborhood to browse a share on my local lan, it'll popup asking for me to login to my ISP's mail server. This is using network neighborhood and my local lan mind you.

However, if I change my IP to Static using the SAME settings I got from DHCP, it doesn't do that.

No trojans/virus/etc... just something really strange going on in windows IP stack... and only with DHCP assigned addresses.

 

[PlatinumGold]

had comcast change my ip address (i have 180 leases with my comcast addresses and all the resetting here at the modem wouldn't change it).

just when you need the dam ip address to change, you can't get it to renew from the router

anyway, it seems to have resolved the problem.

if it was DOS, why didn't anything show up on the logs??