[B.A.T.M.A.N.] default routes not set

[B.A.T.M.A.N.] default routes not set

[leongmzlist]

Hi,
new at batman. I've got the following done:

1. got an airlink ar430w and wrt54gl to ping each other over ad-hoc network
2. setup br-lan:0 on each router.  ar430w has is 192.168.100.1; 
wrt54gl is 192.168.100.2
3. was able to ping each other via br-lan:0 IP
4. using openwrt 8.09 on both routers.

The wrt54gl got the wan/internet link up.  I started "batmand -g 
1mbit/128kbit br-lan:0"
the ar430w doesn't have internet; I started "batmand -r 3 -d 3 br-lan:0"

got this on the ar430w logs:

Interface activated: br-lan:0
Using interface br-lan:0 with address 192.168.100.1 and broadcast 
address 192.168.100.255
B.A.T.M.A.N. 0.3.1 rv1206 (compatibility version 5)
Adding throw route to 127.0.0.0/8 via 0.0.0.0 (table 68 - lo)
Adding throw route to 192.168.1.0/24 via 0.0.0.0 (table 68 - br-lan)
Adding throw route to 192.168.100.0/24 via 0.0.0.0 (table 68 - br-lan:0)
debug level: 3
routing class: 3
Adding route to 192.168.100.2 via 0.0.0.0 (table 66 - br-lan:0)
Found new gateway 192.168.100.2 -> class: 32 - 1024KBit/128KBit
Adding default route to 192.168.100.2 (gw_flags: 32, tq: 217, gw_product: 0)
Gateway client - got IP (169.254.0.1) from gateway: 192.168.100.2
Adding default route via gate0 (table 68)


When I run route -n on the ar430w, there's no default route set.  I 
manually ran:
route add default gw 169.254.0.1

Next I tried to ping the outside world on the ar430w but it gets no 
where.  Any ideas?

thx
mike

Re: [B.A.T.M.A.N.] default routes not set

[leongmzlist]

Turns out I didn't have the batgat kernel module loaded; now I can 
connect to the net.  However, the default gw is still not 
automatically set on the repeater

mike

At 12:23 AM 4/9/2009, leongmzlist wrote:
>Hi,
>new at batman. I've got the following done:
>
>1. got an airlink ar430w and wrt54gl to ping each other over ad-hoc network
>2. setup br-lan:0 on each router.  ar430w has is 192.168.100.1; 
>wrt54gl is 192.168.100.2
>3. was able to ping each other via br-lan:0 IP
>4. using openwrt 8.09 on both routers.
>
>The wrt54gl got the wan/internet link up.  I started "batmand -g 
>1mbit/128kbit br-lan:0"
>the ar430w doesn't have internet; I started "batmand -r 3 -d 3 br-lan:0"
>
>got this on the ar430w logs:
>
>Interface activated: br-lan:0
>Using interface br-lan:0 with address 192.168.100.1 and broadcast 
>address 192.168.100.255
>B.A.T.M.A.N. 0.3.1 rv1206 (compatibility version 5)
>Adding throw route to 127.0.0.0/8 via 0.0.0.0 (table 68 - lo)
>Adding throw route to 192.168.1.0/24 via 0.0.0.0 (table 68 - br-lan)
>Adding throw route to 192.168.100.0/24 via 0.0.0.0 (table 68 - br-lan:0)
>debug level: 3
>routing class: 3
>Adding route to 192.168.100.2 via 0.0.0.0 (table 66 - br-lan:0)
>Found new gateway 192.168.100.2 -> class: 32 - 1024KBit/128KBit
>Adding default route to 192.168.100.2 (gw_flags: 32, tq: 217, gw_product: 0)
>Gateway client - got IP (169.254.0.1) from gateway: 192.168.100.2
>Adding default route via gate0 (table 68)
>
>
>When I run route -n on the ar430w, there's no default route set.  I 
>manually ran:
>route add default gw 169.254.0.1
>
>Next I tried to ping the outside world on the ar430w but it gets no 
>where.  Any ideas?
>
>thx
>mike

Re: [B.A.T.M.A.N.] default routes not set

[Marek Lindner]

Hi,

> Gateway client - got IP (169.254.0.1) from gateway: 192.168.100.2
> Adding default route via gate0 (table 68)

> When I run route -n on the ar430w, there's no default route set.  I
> manually ran:
> route add default gw 169.254.0.1

so far everything is correct but the deprecated "route -n" command shows you 
only one routing table. As the log indicates the default route went into table 
68. You can see it using:

ip route ls table 68

More information regarding the routing tables can be found here:
http://www.open-mesh.net/wiki/RoutingVodoo


> Next I tried to ping the outside world on the ar430w but it gets no
> where.  Any ideas?

You need to NAT on your gateways (wrt54gl) internet interface. 
iptables -t nat -I POSTROUTING -o $your_wan_if -j MASQUERADE

Depending on the batman version you use it might be required to NAT on the 
gate0 interface on the client side in a similar fashion. With batman version 
0.3.2 its not necessary anymore.

Regards,
Marek

Re: [B.A.T.M.A.N.] default routes not set

[Marek Lindner]

On Thursday 09 April 2009 15:50:31 leongmzlist wrote:
> Turns out I didn't have the batgat kernel module loaded; now I can
> connect to the net.  However, the default gw is still not
> automatically set on the repeater

The batgat kernel module increases the performance only. You can run the whole 
setup without it. See the FAQ for more details:
http://www.open-mesh.net/wiki/FAQ

Regards,
Marek