Mac Addresses with Snat

Newbie452061 Posted 25 Sep 2024 23:04

hello dears  why when i made Snat the other device cant reply to nated ip becaouse it dosent have mac-addresse , the other device sill brodcast arp request for nated ip

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Hi,

I think this is because SNAT is meant for outbound traffic, and the expectation is that the NATing device will handle responses from the external device automatically. However, if you're using SNAT on a local network, the device that receives the SNATed packet has no way to resolve the MAC address for the NATed IP, because it doesn't correspond to any device on the network.

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pmateus Lv2Posted 01 Oct 2024 23:10
  
Hi,

I think this is because SNAT is meant for outbound traffic, and the expectation is that the NATing device will handle responses from the external device automatically. However, if you're using SNAT on a local network, the device that receives the SNATed packet has no way to resolve the MAC address for the NATed IP, because it doesn't correspond to any device on the network.

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