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== flashrd ==
== flashrd ==


flashrd is an OpenBSD installer tailored for flash-backed devices that have at least 1Gb of flash and 128Mb of RAM. Here's the [http://www.nmedia.net/flashrd/ project's homepage].
flashrd is an OpenBSD installer tailored for flash-backed devices that have at least 1Gb of flash and 128Mb of RAM. Here's the [http://www.nmedia.net/flashrd/ project's homepage]


== Installing flashrd ==
== Installing flashrd ==
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dd the new flashrd images to the existing flash cards.
dd the new flashrd images to the existing flash cards.


Mount the flash cards, boot into single user mode, or boot the flash card using qemu, then modify /etc/ttys as follows:
Mount the flash cards or boot the flash card using qemu, modify /etc/ttys as follows:


<pre>
<pre>
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<pre>
<pre>
set timeout 5
set timeout 5
stty com0 9600
set tty com0
set tty com0
</pre>
</pre>
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export PKG_PATH=ftp://ftp.openbsd.org/pub/OpenBSD/4.7/packages/i386/
export PKG_PATH=ftp://ftp.openbsd.org/pub/OpenBSD/4.7/packages/i386/
pkg_add -v dnsmasq lsof curl bash iperf isc-dhcp-server net-snmp ngrep bwm-ng
pkg_add -v dnsmasq lsof curl bash iperf isc-dhcp-server net-snmp ngrep bwm-ng
</pre>
== Tunnel configuration ==
Sonic has a example ipv6 tunnel configuration generator for OpenBSD, but it only gives the pre-4.7 syntax.  Here's how r00ter is configured, and these settings should work for any 4.7 or up installation, including recent flashrd builds.
Note that regardless of what the ISP tells you to use as your subnet, you have to use a prefix length of /64 for automatic address configuration to work.  If you have a DHCPv6 server you can do whatever you want, though.
/etc/hostname.sisX:
<pre>
inet6 2001:05a8:0004:5630::0001/64
</pre>
/etc/rc.conf.local:
<pre>
rtadvd_flags="sisX"
</pre>
/etc/rtadvd.conf:
<pre>
sis1:addr="2001:5a8:4:5630::":prefixlen#64
</pre>
/etc/hostname.gif0:
<pre>
tunnel 75.101.62.88 208.201.234.221
inet6 alias 2001:5a8:0:1::ac7 prefixlen 127
</pre>
/etc/pf.conf:
You also have to make sure that any nat rules for your regular IPv4 traffic explicitly say "inet" only instead of all protocols, otherwise pf will try to nat the ipv6 packets too.
<pre>
pass in quick on gif0 inet6 keep state
pass in quick on $ext_if proto ipv6
pass out quick on $ext_if proto ipv6
</pre>
</pre>
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