Re: [c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-17 Thread Robert E. Seastrom
Matthew Lange [EMAIL PROTECTED] writes: * Implement blackhole routing on the Internet interface, using the Bogon list[3] Actually, I would put static bogon lists in the common but bad advice section, right there with turning off ICMP (sorry, RobT!). Why? Well, except for certain networks

Re: [c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-07 Thread Mark Tinka
On Monday 07 May 2007 15:34, Pete Templin wrote: True, but distribute lists can be more powerful. I'm curious... in what way distribute lists would be more flexible than prefix lists (perhaps I've been using prefix lists far too long). Might you have an example? Mark. pgpCvKhHhboKl.pgp

Re: [c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-06 Thread Matthew Lange
Joel-- You might also consider adding the following: * Run your configuration through the Router Auditing Tool[1], from CIS. This tool audits the configuration to the NSA's Router Configuration Guide[2] * Implement blackhole routing on the Internet interface, using the Bogon list[3] *

Re: [c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-06 Thread Mark Tinka
On Sunday 06 May 2007 21:43, Mark Tinka wrote: * recommend the use of IP prefix lists as opposed to distribute lists; the former are more cumbersome. s/former/latter Mark. pgpChl7X6X9tn.pgp Description: PGP signature ___ cisco-nsp mailing list

Re: [c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-06 Thread Mark Tinka
On Sunday 06 May 2007 03:39, Joel M Snyder wrote: Any and all feedback is welcome! Very good paper! On point 12a (page 27), though: * recommend the use of IP prefix lists as opposed to distribute lists; the former are more cumbersome. * I'm personally very wary of route-flap dampening, in

[c-nsp] Feedback on: Security Advice for Routers and Switches

2007-05-05 Thread Joel M Snyder
Folks: I got asked yesterday to write a 45 minute lecture--due Monday!--on how to increase security of your network with Cisco routers and switches. I threw some slides together and would welcome any feedback. My slides are due on Monday, so if you want to dive in and take a look, Sunday