Date: Wed, 27 Feb 2008 14:05:27 +0500 From: "Sergey" <_lion_2000@mail.ru> To: <freebsd-questions@freebsd.org> Subject: Path MTU netstat Message-ID: <000301c8791f$e529fb60$37c9010a@Net.ARDS.Corp>
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I want to see currently discovered Path MTU. I tried netstat -rnaW, but it doesn't show any cloned routes, but i clearly see Path MTU discovery working, by watching tcpdump tracing. An application sends full sized packet with DF bit, receives ICMP Unreach Frag message and retransmits downsized packet again. I need this, because there is another 6.2-RELEASE-p3 host, which doesn't perfom Path MTU discovery, although: # sysctl -a | grep path_mtu net.inet.tcp.path_mtu_discovery: 1 I tried disabling firewall, simplifying routing, but none helps. Anyone help?
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