Subnet specification for tinc node as default gateway

[Nikolaus Rath]

Hello,

I want to use a tinc node as a default gateway in router mode.

My first attempt was to just add an extra, lower priority subnet for the
host that should act as the gateway:

Subnet = 192.168.12.2/32
Subnet = 0.0.0.0/0#20

but this doesn't seem to work:

# route add 173.255.235.238 gw 192.168.12.2
# ping 173.255.235.238

results in the local tinc process complaining that

Read packet of 98 bytes from Linux tun/tap device (tun mode)
Cannot route packet from vostro (MYSELF): unknown IPv4 destination address 173.255.235.238

For testing, I then tried a more restrictive subnet:

Subnet = 192.168.12.2/32
Subnet = 173.0.0.0/8#20

..and this seems to work fine, but obviously I don't want to list all
256 /8 subnets in the configuration. 

Is there something wrong with the 0.0.0.0/0 declaration? What's the
proper way to set this up?


Thanks!

   -Nikolaus

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