Opinions on external ping

[sshannon]

I have an external SOHO customer with an 800 series router. (We are a third-party support service.) We have implemented a number of security features on the router.

What's the general opinion on disabling ping replies? Is it a good idea? The ISP has no objections to disabling pings. Should it be ACL'd to allow pings only from our network? If we deny echo-reply, does it also stop traceroute?

Thanks.

[mostiguy]

I allow ping because it is so easy for users to understand. Blocking echo-reply should not stop traceroute - traceroute uses different icmp types

[osam]

It is a good idea to disable PING replies, even traceroutes..

Check this link,

http://www.ccnaprep.com/securityciscorouters.htm