tech-net: How do I activate path mtu discovery?

Subject: How do I activate path mtu discovery?
To: None <tech-net@NetBSD.ORG>
From: Ignatios Souvatzis <is@jocelyn.rhein.de>
List: tech-net
Date: 07/06/1998 20:37:01

Hi,

I assumed that if I

sysctl -w net.inet.ip.mtudisc = 1

this would get activated. However, netstat -rn shows:

jocelyn netinet !% netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use    Mtu  Interface
default            193.175.27.1       UGS         0      103      -  ppp0
127.0.0.1          127.0.0.1          UH          1       64      -  lo0
193.175.27.1       193.175.27.218     UH          2      357      -  ppp0
193.175.27.216/29  link#1             UC          0        0      -  bah0
193.175.27.217     4d                 UHLS        1       30      -  bah0

same as without that option enabled. What do I missing here?

	-is