IPv6 neighbor discovery question

[Neeraj Bhatia]

The stack should send out a neighbor solicitation for a global source
address of a received Echo request when there are no default routers present
on the link.I believe such addresses should be considered on link wrt RFC
2461 Section 5.2.

Currently ip6_output will drop such a packet since there won't be a prefix
route in
the routing table.Is this correct behavior?


Thx.
-N


===
Neeraj Bhatia
IP group, Core Networking
Wind River Networks
(o)510.749.4633
(m)509.475.7106



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detecting increases in PMTU

[Neeraj Bhatia]

hello All,

I am running Freebsd 4.7 stable release.

in6_mtuexpire is called approximately every MTUTIMO_DEFAULT ie every 1
minute. Shouldn't this value be such that the increases in MTU can be
detected less frequently,in accordance with RFC 1981, Path MTU Discovery for
IPv6. Also the flag RTF_PROBEMTU is not being used at the moment.Please let
me know if I am missing something.
One way would be to handle the issue could be as follows.When sending the
packet out in ip6_output we could check for RTF_PROBEMTU and bring the mtu
value in the route entry back to the link mtu value.

Thx.
-N


===
Neeraj Bhatia
IP group, Core Networking
Wind River Networks
(o)510.749.4633
(m)509.475.7106


To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-net" in the body of the message