MikroTik RouterBoard RB532A
Overview
I am setting this Mikrotik RouterBoard RB532A up to work as a home gateway router, and I am thinking about putting Asterisk on it too. I already have Asterisk running on an Ubuntu server so moving it over should not be too hard.
Board specs
Board type: 532A
Serial number: 16C901CD44DB
Firmware version: 2.10
CPU frequency: 399 MHz
Memory size: 64 MB
eth1 MAC address: 00:0C:42:10:1C:6C
eth2 MAC address: 00:0C:42:10:1C:6D
eth3 MAC address: 00:0C:42:10:1C:6E
Set up
Support for the RouterBoard in OpenWrt seems to be pretty good, they have the latest releases prebuilt for the RouterBoard.
Install took 10 minutes including opening up the case. OpenWrtDocs/Hardware/Mikrotik/RB532
Support in dd-wrt is not good. There is an old beta.
Reflashing with OpenWrt X-Wrt
http://wiki.openwrt.org/OpenWrtDocs/Hardware/Mikrotik/RB532
The simplest way is to download the CF image file from http://downloads.x-wrt.org/xwrt/kamikaze/ and then use 'dd' to copy it to a CF card, then put the CF into the RouterBoard and off you go.
Get the 128k image. The 128k refers to the block size in the filesystem and it's good for CF cards.
Use the 'dd' command under Linux or Macintosh to copy the image to the CF card. Cygwin includes a 'dd' command so if you are burdened with Windows you can still use dd. I did not get it working and ended up simply usng Linux. YMMV http://www.groupsrv.com/linux/about17777.html
dd if=/dev/sdb of=backupimage.bin dd if=openwrt-rb532-jffs2-128k.bin of=/dev/sdb
The backup image is 256MB because that's the device size. Wastes some disk space but then again I delete it as soon as the RouterBoard is up and running again.
On my Macintosh with a USB card reader the command is almost the same, Macs are pretty cool actually.
sudo dd if=openwrt-rb532-jffs2-12k.bin of=/dev/disk1
Configuraion as gateway router
To-do
- Fix routing table
- dyndns updates
- ntp server? (client is working) (ntpd is installed)
- QoS
- netmeeting - use dmz
- dmz - allow OpenVpn access ?
- WiFi -
- DHCP for LAN?
- OpenVPN
- Scheduled QoS control?
- Crow? or similar
- WoL
Serial console setting
Connect a serial cable and use "screen /dev/ttyS0 115200"
Password
Root password set from the console port command line using "passwd". Set to the usual root password.
Ethernet ports
There are three, the one to the left of the serial port is eth0 To the right are eth1 and eth2
Network
This is the /etc/config/network file, hand edited to create two networks. There is a third etherport port (eth1) that is currently unused.
config 'interface' 'loopback'
option 'ifname' 'lo'
option 'proto' 'static'
option 'ipaddr' '127.0.0.1'
option 'netmask' '255.0.0.0'
config 'interface' 'wan'
option 'ifname' 'eth0'
option 'proto' 'dhcp'
config 'interface' 'lan'
option 'ifname' 'eth2'
option 'proto' 'static'
option 'ipaddr' '192.168.123.254'
option 'netmask' '255.255.255.0'
Route command
At the console, add a default route through the old router (bellman) so that you can get the webif stuff running initially; you need to add some packages.
route add default gw 192.168.123.1
Update resolv.conf
search wildsong.biz nameserver 192.168.123.1
Packages added
After getting webif running use it to make these package additions/deletions. Dependencies are shown in parentheses.
asterisk16-sounds (asterisk16, libncurses, libopenssl, libpopt, librt, libpthread, zlib) asterisk16-chan-iax2
etherwake ntpd openvpn (kmod-tun liblzo) updatedd-mod-dyndns (updatedd)
Packages removed
ppp ppp-mod-pppoe
DHCP
/etc/config/dhcp
config dhcp
option interface lan
option ignore 1
config dhcp
option interface dmz
option start 190
option limit 199
option leasetime 1h
config dhcp
option interface wan
option ignore 1
Dyndns
Comes with changeip client, which can be configured with your username password
Firewall
Set up from WebIf. Note that the rule names cannot have spaces in them
config 'defaults'
option 'syn_flood' '1'
option 'input' 'ACCEPT'
option 'output' 'ACCEPT'
option 'forward' 'REJECT'
config 'zone'
option 'name' 'lan'
option 'input' 'ACCEPT'
option 'output' 'ACCEPT'
option 'forward' 'REJECT'
config 'zone'
option 'name' 'wan'
option 'input' 'REJECT'
option 'output' 'ACCEPT'
option 'forward' 'REJECT'
option 'masq' '1'
config 'forwarding'
option 'src' 'lan'
option 'dest' 'wan'
config 'redirect' 'Bellman_SSH'
option 'src' 'wan'
option 'dest_ip' '192.168.123.1'
option 'dest_port' '22'
option 'proto' 'tcp'
option 'src_ip' ''
option 'src_dport' '22'
config 'redirect' 'AsteriskIAX2'
option 'src' 'wan'
option 'dest_ip' '10.127.32.28'
option 'dest_port' '4569'
option 'proto' 'udp'
option 'src_ip' ''
option 'src_dport' '4569'
config 'redirect' 'OpenVpn'
option 'src' 'wan'
option 'proto' 'udp'
option 'dest_ip' '10.127.32.27'
option 'dest_port' '1194'
option 'src_ip' ''
option 'src_dport' '1194'
config 'forwarding'
option 'src' 'lan'
option 'dest' 'dmz'
config 'forwarding'
option 'src' 'dmz'
option 'dest' 'wan'
NTP
Set timezone to US/Pacific Set servers to {0,1,2}.pool.ntp.org
Add this line to ntp.conf
restrict 192.168.123.0 mask 255.255.255.0
Add link to /etc/rc.d so that ntpd will start, you can do this in webIf services page.
QoS
Install but not configured yet. I'd like to use this to control bandwidth used for offsite backups. I want full utilization at night and 200 Kbps during business hours. A way to switch it down to a low bandwidth manually would be good.
SNMP
Installed but not configured yet.
SSL
Installed MatrixSSL so that we can connect to router using a secure connection.
Syslog
Set to log to Bellman.
Wake-On-Lan
Installed not configured yet
VPN
OpenVPN
This end will connect with AGI's and keep the connection nailed up. I suppose I could also allow access back in from the world at large but that is not my primary objective.
So I do the usual - copy the config files from the AGI server and then start it up.
Phone server options
These are available as packages for OpenWrt
- Asterisk 1.4, 1.6 - a pain to debug configurations
- FreeSwitch - B2BUA/media gateway
- kamailio
- OpenSER 1.0.1-1 - Outdated version, it's called OpenSIPS now
- OpenSIPS 1.5.3-1 - SIP Proxy
FreeSwitch is divided into many packages. I am installing it on the system that I have been running Asterisk on, so that I can try it out on a real computer.
