Date: Wed, 8 May 2013 11:54:46 -0400 From: Chip Marshall <chip@2bithacker.net> To: freebsd-net@freebsd.org Subject: gre and MONITOR Message-ID: <20130508155446.GB95890@2bithacker.net>
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It appears the MONITOR flag doesn't work on gre interfaces.
I have a GRE tunnel set up between a FreeBSD 8.2-RELEASE box and a
Juniper router.
Config on the FreeBSD end:
gre0: flags=4b051<UP,POINTOPOINT,RUNNING,LINK0,LINK1,MULTICAST,MONITOR> metric 0 mtu 1476
tunnel inet 10.162.163.133 --> 10.162.163.131
inet6 fe80::20c:29ff:fe9f:de64%gre0 prefixlen 64 scopeid 0x6
inet 10.200.0.2 --> 10.200.0.1 netmask 0xfffffffc
nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
Config on the Juniper end:
tunnel {
source 10.162.163.131;
destination 10.162.163.133;
}
family inet {
address 10.200.0.1/30;
}
And from the Juniper, I am able to ping the 10.200.0.2 IP on the
FreeBSD end of the GRE tunnel. As I understand it, this shouldn't
happen with the MONITOR flag there, right?
> ping 10.200.0.2 rapid
PING 10.200.0.2 (10.200.0.2): 56 data bytes
!!!!!
--- 10.200.0.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.265/0.297/0.382/0.043 ms
--
Chip Marshall <chip@2bithacker.net>
http://2bithacker.net/
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