more like something you turn on - by configuring the protocol that uses it.

On Nov 1, 2005, at 7:01 PM, vijay gill wrote:

Fred Baker wrote:
one of them sounds like it is redundant. I think the Router Alert predated the HBH header...
On Nov 1, 2005, at 6:04 PM, John Spence wrote:
Hello;
If the H-B-H extension header means "all intermediate nodes must look in here for options to process", why is the "Router Alert" option needed? As I read the text of the two RFCs, the Router Alert Option is redundant - just including a H-B-H header means "intermediate nodes must look at this packet even if it is not addressed to them", which seems to be the same meaning as Router Alert.

Sounds like nice DDoS attack vector on routers. I suspect this will soon be an option that can be turned off via configuration commands on the router.

/vijay

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"Don't worry about the world coming to an end today. It's already tomorrow in Australia." (Charles Schulz )


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