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Difference between SNAT and DNAT.

Mumbai University > Electronics Engineering > Sem 8 > Advanced Networking Technologies

Marks: 5M

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Sr. No. SNAT DNAT
1. Source Network Address Translation Destination Network Address Translation
2. In SNAT source IP address is modified
3. On either side of a NAT device we have outside world and inside world.,When inside world communicates with outside world SNAT happens When outside world communicates with inside world DNAT happens
4. When many internal private IP addresses gets translated to one public IP address, it’s called Static SNAT When many internal private IP addresses gets translated to many public IP address it’s called Dynamic SNAT
5. Source NAT changes the source address in IP header packet Source NAT changes the destination address in IP header packet
6. SNAT allows multiple hosts on the “inside” to get to any host on the “outside” DNAT allows multiple hosts on the “outside” to get to any host on the “inside”
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