Re: smurf

This is also mentioned in the *-03.txt version of the ingress filtering draft: ftp://ds.internic.net/internet-drafts/draft-ferguson-ingress-filtering-03.txt - paul At 03:13 PM 12/8/97 -0800, Craig A. Huegen wrote:

It's a requirement per the RFC:

(from my smurf paper)

RFC 1812, "Requirements for IP Version 4 Routers", Section 5.3.5, specifies:

--- A router MAY have an option to disable receiving network-prefix- directed broadcasts on an interface and MUST have an option to disable forwarding network-prefix-directed broadcasts. These options MUST default to permit receiving and forwarding network-prefix- directed broadcasts. ---