Hi,
I can also replicate this behaviour on 10.1-RELEASE by simply creating
an additional vlan interface. It affects IPv4 and IPv6 forwarding.
This is taken from a test setup of FreeBSD boxes running Quagga as BGP
routers - but with a default GENERIC kernel. This machine has 2x ixgbe,
4x igb and 2x bce physical interfaces, with a cloned lo1 and vlan0.
[root@test1 ~]# uname -a
FreeBSD test1.prtsystems.ltd.uk 10.1-RELEASE FreeBSD 10.1-RELEASE #0
r274401: Tue Nov 11 21:02:49 UTC 2014
r...@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
[root@test1 ~]# sysctl -a | grep forwarding
net.inet.ip.forwarding: 1
net.inet.ip.fastforwarding: 1
net.inet6.ip6.forwarding: 1
[root@test1 ~]# ifconfig vlan1 create
[root@test1 ~]# sysctl -a | grep forwarding
net.inet.ip.forwarding: 0
net.inet.ip.fastforwarding: 1
net.inet6.ip6.forwarding: 0
I haven't tried using 10.0 as a router, so don't know if this crept in
between 10.0 and 10.1 or 9 and 10.
Paul.
On 03/01/2015 13:12, wishmaster wrote:
Hi,
I have been seeing strange behavior of my system lately. After creating new interface the
system variable net.inet.ip.forwarding becomes "0".
E.g. manually load if_ral kernel module, then rel0 interface appears and
net.inet.ip.forwarding becomes "0".
Previously this happened when I attached smartphone with USB tethering is on.
May be this is VIMAGE-related... Any ideas?
Below my original first post.
Hi, list.
Server works as router for small network and some services in the jails. When I
connect Android-based smartphone and attempt to use USB Tethering, the
net.inet.ip.forwarding becomes 0 and I must change it to 1 every time.
Is this normal behavior?
FreeBSD server.local 10.1-STABLE FreeBSD 10.1-STABLE #1 r275636: Mon Dec 22
11:05:33 EET 2014 wishmaster@server.local:/usr/obj/usr/src/sys/SMS i386
Kernel has been compiled with VIMAGE
Cheers,
Vitaliy
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