Hi all Thank you all for your answer to my previous question 'RFC1918 from ISP' I have another BGP question, and may be related to BGP dampening. We have a client whose IP is in the block X.X.0.0/19 which doesn't show in our router. However, our BGP log records that we have received this route from our peer isp. I reboot the router, seeing that the route was in our router only to disappear again after couple of minutes. I suspect that it may have been removed by the BGP dampening feature in our router. By disabling the feature, the route will stay in our router. Q1/ My only understanding of the benefit of this feature is to prevent 'unstable' route from flooding to our router, causing a CPU overflow. What's the risk of leaving this off? Q2/ What is the cause of these route that frequently send to our router as stated below? Once our other routes are in our BGP DB, then it will not be re-broadcast to us except withdraw from our peer isp

2006/05/26 08:30:34 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:33:42 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:36:46 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:39:49 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:45:25 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:48:00 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:49:02 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:51:34 BGP: our-peer-isp rcvd x.x.0.0/19 2006/05/26 08:52:36 BGP: our-peer-isp rcvd x.x.0.0/19

Q3/ Do you know any good website to montior the routing network? I just heard this scoreboard.keynote.com from http://isc.sans.org/diary.php but it needs register Thank you very much