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Deena's avatar
Deena
Icon for Altocumulus rankAltocumulus
Nov 13, 2024

NAT for specific IPs

Hi All, Looking for suggestions on how I can accomplish NAT for a couple of specific IPs, without NATting all the incoming traffic.

My scenario is as following:

source client ips 10.10.10.100 & 10.10.10.102 destination VS1(10.10.20.1.), load balancers to servers 10.10.10.10 & 10.10.10.20 (same subnet as the source address). I would like to NAT traffic from these client addresses to the floating IP 10.10.10.1, and all other client traffic no NAT is applied. I can't create a NAT Pool for 10.10.10.100 & 10.10.10.102 as they are members of pool for a different VS. 

Any ideas/suggestions on how I can accomplish this?

 

I appreciate your assistance.

 

Thanks

Deena

LTM
nat
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Icon for MVP rankMVP
    Nov 14, 2024

    Hi Deena,

    You can use iRule or LTM policy.

    when CLIENT_ACCEPTED {
	if { [IP::addr [IP::client_addr] equals 10.10.10.0/24] } {
		snat 10.10.10.1
	}
	else {
		snat none
	}
}

    https://clouddocs.f5.com/api/irules/snat.html