Date: Sat, 03 Jan 2015 18:58:06 +0000 From: Paul Thornton <prt@prt.org> To: Mike Tancsa <mike@sentex.net>, freebsd-net@freebsd.org Subject: Re: Issue with forwarding when creates new interface [was USB Tethering and forwarding] Message-ID: <54A83BBE.8000700@prt.org> In-Reply-To: <54A82FA0.3090704@sentex.net> References: <1419680989.938234917.k6otv1bh@frv34.fwdcdn.com> <1420288398.485039365.so6mgquw@frv34.fwdcdn.com> <54A7FA6C.8030603@prt.org> <54A82FA0.3090704@sentex.net>
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Hi, On 03/01/2015 18:06, Mike Tancsa wrote: > 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 ? That seems to be what is happening. In the earlier post, I was just setting the three sysctls in /etc/sysctl.conf - and observed that forwarding went away if an interface was added. Doing it by setting fastforwarding only in sysctl.conf, and setting both gateway_enables to yes in rc.conf fixes the problem: [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: 1 net.inet.ip.fastforwarding: 1 net.inet6.ip6.forwarding: 1 That's quite ... odd, to sat the least. I can't see anything in devd.conf which would relate to a new interface being created, but that doesn't mean that there isn't some magic functionality in there. Paul.
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