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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