> If you're using ppp(8), you can use the tcpmssfixup option.

pppd(8) doesn't describe any such option, and

	% cd /usr/src/*/pppd
	% find . -type f -print | xargs mcgrep -H -i tcpmssfixup

finds nothing, so I don't think I can.  (It may well be a version skew
issue, but it's not worth it to try to backport a more recent pppd just
for this, since setting mss_ifmtu seems to have made it work.)

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