Lori Napoli writes:
> If an adminstrator set up the stack to have a hoplimit of x. Does
this
> imply that any application, authorized and unauthorized, can
override
> this value? If the adminstrator only wanted packets sent from this
> stack to route through 10 hosts, an application can increase this?
It's up to the implementation. I think the usual answer would be "yes".
> Does
> it make sense to only allow the application to specify a hop limit
that
> is lower than the configured hop limit for the stack?
Not sure.
> RFC 1122 states you MUST not send out a packet w/ a TTL of 0. Does
> this
> mean that we shouldn't send out an IPv6 packet w/ hop limit = 0?
One shouldn't send an IPv6 packet out on the wire with hop limit = 0.
> If so,
> why does the RFC state the valid values are 0 - 255? Since the
packet
> cannot be sent out using hop limit of 0, does it make more sense to
> fail
> a request to set it to 0?
No. Packets with a hop limit of 0 can still be sent on the same
machine,
for example between different processes.
-Dave
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