Date: Sat, 03 Jan 2015 13:06:24 -0500 From: Mike Tancsa <mike@sentex.net> To: Paul Thornton <prt@prt.org>, freebsd-net@freebsd.org Subject: Re: Issue with forwarding when creates new interface [was USB Tethering and forwarding] Message-ID: <54A82FA0.3090704@sentex.net> In-Reply-To: <54A7FA6C.8030603@prt.org> References: <1419680989.938234917.k6otv1bh@frv34.fwdcdn.com> <1420288398.485039365.so6mgquw@frv34.fwdcdn.com> <54A7FA6C.8030603@prt.org>
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On 1/3/2015 9:19 AM, Paul Thornton wrote:
> Hi,
>
> I can also replicate this behaviour on 10.1-RELEASE by simply creating
> an additional vlan interface. It affects IPv4 and IPv6 forwarding.
Strange, I dont see that on RELENG_10
0{marble}# ifconfig em2 up
0{marble}# ifconfig em2.3 create 1.1.1.2/24
0{marble}# sysctl -a | grep forwarding
net.inet.ip.forwarding: 1
net.inet.ip.fastforwarding: 0
net.inet6.ip6.forwarding: 0
0{marble}# ifconfig vlan4 create 2.2.2.2 vlan 4 vlandev em2
0{marble}# sysctl -a | grep forwarding
net.inet.ip.forwarding: 1
net.inet.ip.fastforwarding: 0
net.inet6.ip6.forwarding: 0
0{marble}#
do you set forwarding via just /etc/sysctl.conf or in /etc/rc.conf via
ipv6_gateway_enable and gateway_enable. I seem to recall some discussion
about there being a difference. Perhaps devd is calling something that
then fiddles with the setting ignoring whats in sysctl.conf ?
---Mike
--
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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