Date: Fri, 24 Aug 2001 01:53:24 +0900 (JST) From: Toshihiko ARAI <toshi@jp.FreeBSD.org> To: nate@yogotech.com (Nate Williams) Cc: freebsd-mobile@FreeBSD.org, imp@FreeBSD.org Subject: Re: Documentation for rc.conf's removable_interfaces? Message-ID: <200108231653.f7NGrO802605.toshi@jp.FreeBSD.org> In-Reply-To: <15234.48176.6699.983659@nomad.yogotech.com> References: <15228.2988.181554.313833@nomad.yogotech.com> <200108200357.f7K3vMn18594.toshi@jp.FreeBSD.org> <15233.22136.524384.459698@nomad.yogotech.com> <200108211348.f7LDmTh30188.toshi@jp.FreeBSD.org> <15234.48176.6699.983659@nomad.yogotech.com>
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+ <15234.48176.6699.983659@nomad.yogotech.com>, Nate Williams wrote:
> This is good. However, there is still one more problem with the file as
> it exists. If a default_router exists, it will not be used because of
> the following lines.
> # Add default route into $static_routes
> case ${defaultrouter} in
> [Nn][Oo] | '')
> ;;
> *)
> static_routes="default ${static_routes}"
> route_default="default ${defaultrouter}"
> ;;
> esac
> However, I'm not sure what the purpose of adding 'default' to
> static_routes is, and unfortunately 'route_default' is not used anywhere
> in the file.
> Can you explain what is intended here?
'route_default' variable is used with following eval line.
Because '${i}' is element of '${static_routes}',
in this case 'route_${i}' is substituted for 'route_default'.
I referred to 'network_pass1' function of /etc/rc.network,
it is around 330th line.
# Set up any static routes if specified
if [ -n "${static_routes}" ]; then
for i in ${static_routes}; do
eval route_args=\$route_${i}
route add ${route_args}
done
fi
> ps. The below patch is good, although it may be necessary to do a route
> flush in certain cases.
When I do hot-plug of PC-card Ethernet and USB Ethernet with
more than one environment, former route is left and may become
a problem. Therefore I was able to control it with
'removable_route_flush' variable.
There is a method to add 'removable_route_flush=NO' to
/etc/defaults/rc.conf, but which is better compared with below patch?
>> - # Clean the routing table
>> - case ${removable_route_flush} in
>> - [Nn][Oo])
>> - ;;
>> - *)
>> - # flush beforehand, just in case....
>> - route -n flush -inet
>> - ;;
>> - esac
--
Toshihiko ARAI
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