Internet Protocol Security

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.

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Scenario 10
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two CSR1000V hub routers configured with dual hub dual cloud Phase 3 DMVPN.
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Cloud Class® Course: SQL Server Core 2016
LVL 12
Cloud Class® Course: SQL Server Core 2016

This course will introduce you to SQL Server Core 2016, as well as teach you about SSMS, data tools, installation, server configuration, using Management Studio, and writing and executing queries.

Scenario 9
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two CSR1000V hub routers configured with single tier Phase 3 DMVPN Cloud.
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Scenario 8
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two spoke routers connected to single tier Phase 3 DMVPN Cloud hosted on CSR1000V router.
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Scenario 7
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two spoke routers connected to single tier Phase 1 DMVPN Cloud hosted on CSR1000V router.
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Scenario 6
This article is about building a Route Based site to site VPN tunnels with Redundant Routers in DC (HUB) in Cisco CSR1000V router with IOS XE. There are four Route Based IPsec VPN tunnels configured on two CSR1000V routers as redundant routers pair.
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Scenario 5
This article is about building a Route Based site to site VPN tunnels with VRF and dynamic routing protocol (OSPF) in Cisco CSR1000V router with IOS XE. There are two Route Based IPsec VPN tunnels configured on CSR1000V router, traffic from app server is with NAT and rest is without NAT.
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Scenario 4
This article is about building a Route Based site to site VPN tunnels with dynamic routing protocol (OSPF) in Cisco CSR1000V router with IOS XE. There are two Route Based IPsec VPN tunnels configured on CSR1000V router, traffic from app server is with NAT and rest is without NAT.
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Scenario 3
This article is about building a Route Based site to site VPN tunnels in Cisco CSR1000V router with IOS XE. There are two Route Based IPsec VPN tunnels configured on CSR1000V router, traffic from app server is with NAT and rest is without NAT.
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Scenario 2
This article is about building a VRF-Aware site to site VPN tunnels in Cisco CSR1000V router with IOS XE. There are two VRF-Aware Policy Based IPsec VPN tunnels configured on CSR1000V router one with NAT and another without NAT.
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Scenario 1
This article is about building a site to site VPN tunnels in Cisco CSR1000V router with IOS XE. There are two Policy Based IPsec VPN tunnels configured on CSR1000V router one with NAT and another without NAT.
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Expert Comment

by:Isaivani Venkat
Comment Utility
ip nat outside source static 192.168.10.10 172.17.10.10 this NAT statement really required ???
0
LVL 4

Author Comment

by:Santosh Salunke
Comment Utility
Hi Isaivani Venkat

ip nat outside source static 192.168.10.10 172.17.10.10

This NAT is to change branch user IP from 172.17.10.10 to 192.168.10.10. I had used this to demonstrate how to do 'Destination IP NAT'.
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Introducing the "443 Security Simplified" Podcast
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Introducing the "443 Security Simplified" Podcast

This new podcast puts you inside the minds of leading white-hat hackers and security researchers. Hosts Marc Laliberte and Corey Nachreiner turn complex security concepts into easily understood and actionable insights on the latest cyber security headlines and trends.

How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance.

A concise guide to the settings required on both devices
1
threat model
Envision that you are chipping away at another e-business site with a team of pundit developers and designers. Everything seems, by all accounts, to be going easily.
1
LVL 67

Expert Comment

by:Jim Horn
Comment Utility
Hi Shakshi

Thanks for your submission.  889 words, completely original content, and reads fairly well.  The technical aspects of this article seem pretty solid, but I'm going to send this back to Draft / Author Review for some general readability editing.  When you're done go ahead and resubmit and I'll review from there.

Please separate paragraphs with a blank line, as without that an article can resemble a 'word wall' where everything jumbles together and can be difficult to read.

>fruitful dispatch, inculcate, buttonhole, the prerequisite in a venture, Addedly, ingressed, environ
These words are rarely used and may confuse people.  Keep in mind that if these are local slang than it might not translate well to a global audience.  I can appreciate that you're trying to tell a story and be somewhat entertaining in the process, but just make sure you don't lose people in the translation.

>as it were, Addedly,
There are some phrases here that do not add value and can be deleted.

>Now let's take a brief about what Threat modeling is: Threat modeling does not include
Please define something by what it is, not what it is not.  The 'is not' stuff can always be added later.

>STRIDE & DREAD.
If terms are going to be introduced but not defined please at minimum provide a link to a definition.

Please provide a conclusion.

Feel free to self-promote in the 'About the Author' section, especially if you have other publications that readers of this one may be interested in reading.

For a lot more recommendations on how to score maximum points on articles check out Top 10 Ways To Write Rock Star Technical Articles

Thanks in advance.  I look forward to seeing this as a finished product.
Jimbo
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Internet Protocol Security

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.

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