Snort mailing list archives
Re: tcp flood
From: Matt Kettler <mkettler () evi-inc com>
Date: Mon, 07 Mar 2005 17:13:13 -0500
At 03:25 PM 3/7/2005, SN ORT wrote:
You can rate-limit on just about any Cisco device (including PiX) to limit DoS attacks, including TCP SYN attacks, by using access-lists with rate-limit commands. Look to your Internet routers to stop the attacks.
Marc,The Cisco PiX OS as of the most recent released version 6.3(4) does not support rate-limit in an access-list.
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/ab.htm#wp1067755The rate-limit feature requires QoS support, something the PiX currently lacks entirely, but the as-yet-unreleased PiX OS 7.0 is reported (by Cisco's website) to support QoS.
The "new features" datasheet for PiX 7.0 is listed here: http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_data_sheet0900aecd80225ae1.htmlAny QoS enabled IOS image should be able to do rate limiting, but I'm not sure which IOS feature sets have QoS and which do not.
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Current thread:
- tcp flood Joaquin Grech (Mar 06)
- Re: tcp flood Matt Kettler (Mar 07)
- RE: tcp flood Joaquin Grech (Mar 07)
- Message not available
- RE: tcp flood Matt Kettler (Mar 08)
- Re: tcp flood Matt Kettler (Mar 07)
- <Possible follow-ups>
- Re: tcp flood SN ORT (Mar 07)
- Re: tcp flood Matt Kettler (Mar 07)
- RE: tcp flood Joaquin Grech (Mar 08)
- Re: tcp flood Matt Kettler (Mar 07)
- RE: tcp flood SN ORT (Mar 08)
- Re: tcp flood Matt Kettler (Mar 08)