UDP NAT

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falahdab
UDP NAT

Hi everyone.

I have two subnets (192.168.0.0/24 and 102.172.97.0/24) which are connected to a computer on which I run Vyatta VC3 Community edition in a VMware Server with two physical ethernet adapters.

Subnet 102.172.97.0/24 is connected to eth0
Subnet 192.168.0.0/24 is connected to eth1

I have a host on 192.168.0.140 which broadcasts UDP packets to 192.168.0.255:6020. Il would like the Vyatta router to do some NAT so that this broadcast is transmitted to the 102.172.97.0/24 subnet (to 102.172.97.255:6020 would be perfect).

I have tried to set up NAT:
Destination NAT
Inbound: eth1
Inside address 102.172.97.255

I have tried several settings for the other elements (filters, outbound interface, etc ...) without success.

A tcpdump on the Vyatta shell show that the packets arrive to eth1. However, they are not NATed to the second subnet...

(No other protocol or special service active. Vyatta just out of the box, ethernet interfaces configured et tested OK, NAT service configured then...)

Thank you for your help.

Florian