iptables to ipfw

Chiang Seng Chang cs at europa.ctzen.com
Tue Apr 20 13:45:55 PDT 2004


hi,

anyone knows what is the equivalent of these in ipfw ?

  iptables -t nat -A POSTROUTING -s 10.1.0.2/32 -o eth0 -j MASQUERADE
  iptables -t nat -A POSTROUTING -s 10.50.4.0/22 -o eth0 -j MASQUERADE

it's for openvpn using tun0.

i have setup natd using:

  ipfw add divert natd all from any to any via dc0

and it is working.

but i would like to be more specific so that i am not nat'ing unnecessary.

tried without success:

  ipfw add divert natd all from 10.1.0.1/32 to any via dc0
  ipfw add divert natd all from 10.50.4.0/22 to any via dc0

thanks and regards.

-cs


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