Re: ip_pmtu_strategy, was: Corrections for "Using the Unused" and for "The DF Playground"

[Kevin Steves <stevesk () sweden hp com>]

On Mon, 25 Sep 2000, Ralf Hildebrandt wrote:
: Let me rephrase this: On 10.x one can block source routed packets using the
: above obscure ADB incantation -- does anybody know an incantation for
: setting the ip_pmtu_strategy on 10.x ?

On 10.20 (I'm not sure about <10.20) there are nettune objects for TCP
and UDP for PMTU "on" or "off":

$ nettune -h udp_pmtu
udp_pmtu:
When enabled(1), all UDP datagrams will be transmitted with the DF
bit set and this will start the PMTU Discovery process. When
disabled(0), the DF bit is not set. The default is disabled(0).
$ nettune -h tcp_pmtu
tcp_pmtu:
When enabled(1), all TCP datagrams will be transmitted with the DF
bit set and this will start the PMTU Discovery process. When
disabled(0), the DF bit is not set. The default is enabled(1).


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