Twice NAT - Network Address Translation

Every type of address translation we've discussed so far has one thing in common -- only the Source IP was translated -- the Destination IP was left un touched (of the outbound packet). There are times, however, when you need to translate both the Source and Destination, and those situations are what is called a Twice NAT.

To be clear, a Twice NAT is simply one of the four types of translations we've already discussed (Static NAT, Static PAT, Dynamic PAT, Dynamic NAT) applied to both the Source and Destination of a packet. A Twice NAT is sometimes referred to as a Double NAT (among other names).

Typically, a Twice NAT is configured using a Policy NAT, so make sure you watch that video for a clear illustration of Policy NAT.

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#twicenat #doublenat #nat #rfc1918 #cisco #juniper #ccna #net+

[justsomebody]

After watching your network fundamentals course and tcp/udp and now nat, i feel so thankful to you! ❤ It helped me so much to get better at understanding networking! Keep it up man!

[inderdeepsingh]

Thank you for creating a complete series of NAT. It was knowledgeable.

[dennist.]

i have to come back and rewatch again to wrap my mind around, great video's though.

[neotheek]

Suggestions: each video for different VPN protocols, pros cons etc
Additionally, you can make server setup tutorials in Linux for different VPN protocols, proxy servers etc.

[CyberTronics]

Thank you simplified understood a concept that would have took ages reading

[parastalreja]

Respected sir,
I have query on IPsec VPN
Would please help me to solve my query to create video in IPsec vpn

[caiden]

I wish i had found these tutorials a lot sooner.

[NeurosesGamer]

Your videos are cathartic at this point Ed 😂

[gambarimas]

On 4:43 I think your highlights with the red marker on screen reversed the order of the translation. You highlighted the translation `32.9.1.8` -> `8.8.8.8`, but I think you meant the opposite translation. I loved this series of videos on NAT. Thanks for creating and sharing this content. I understand how difficult it actually is to create those nice figures and animations, and how difficult it actually is to organize and expose the content in an understandable and reasonable way.

[Deshammanideep]

Thank you very much sir from bottom of my heart.

[reynaldoruizflores]

interesting that so many years ago without this terminology on Microsoft TMG I used all without knowing.

[joshcornell]

unsubscribed from esoterica when he suggested astrotheological mythology wasn't a thing. not a valid source.