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How to NAT - WR21

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Dear Digi,

I'm not sure if NAT is the correct term, but I would like to translate IP addresses.

i.e. if I send a ping request through the modem to 10.1.0.1, I want the modem to translate that address so the ping request is sent to 10.1.1.1. Is this possible? Further, I'd like to setup a NAT table:

10.1.0.1 = 10.1.1.1
10.1.0.2 = 10.1.1.2
10.1.0.3 = 10.1.1.3
...etc

Right now i'm using a router to do this, which is messy and expensive, as it's another piece of hardware in my enclosure. I was hoping the WR21 had this functionality built-in.
asked Dec 18, 2018 in Digi TransPort by allan.ryan New to the Community (0 points)

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1 Answer

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Hi you could do this in the firewall

pass out break end proto icmp from any to 10.1.0.0/24 -> to 10.1.1.0/24

you would need this on the interface close to the source so may be on eth 0 and you would need another rule to allow all other traffic

pass break end

hope that works for you

regards

James
answered Dec 19, 2018 by James.Wilson Veteran of the Digi Community (1,225 points)
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