Remote-access Guide

cisco ios remote access vpn

by Christine Langosh Published 3 years ago Updated 2 years ago
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How to setup remote access IPSec VPN on Cisco router iOS platform?

Here’s how to setup a Remote Access IPsec VPN on the Cisco Router IOS platform Step1. Define the authentication and authorization methods used. In this case, we’re defining a new group called VPN which will use the local database for authenticating and authorizing the user.

How to configure Cisco IOS VPN?

Cisco IOS VPN Configuration Guide 1 —Configuring the Tunnel 2 —Configuring Network Address Translation 3 —Configuring Encryption and IPSec 4 —Configuring Quality of Service 5 —Configuring Cisco IOS Firewall Features

What is the Cisco secure VPN client software?

Using Cisco Secure VPN Client software, a remote user can access the corporate headquarters network through a secure IPSec tunnel. Although Cisco IOS VPN gateways support Cisco Secure VPN Client software, this guide does not explain how to configure your gateway for use with it.

What type of VPN gateway do you use?

Both the headquarters and remote office are using a Cisco IOS VPN gateway (a Cisco 7200 series with an Integrated Service Adaptor (ISA) or VAM (VAM, VAM2, or VAM2+), a Cisco 2600 series router, or a Cisco 3600 series router).

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What is Cisco remote access VPN?

This allows remote users to connect to the ASA and access the remote network through an IPsec encrypted tunnel. The remote user requires the Cisco VPN client software on his/her computer, once the connection is established the user will receive a private IP address from the ASA and has access to the network.

How can I remotely access my VPN?

Simply go to Start -> Accessories -> Remote Desktop Connection and enter the IP address of the other Windows computer. desktop software. From HOME Mac to OFFICE Windows: Connect with VPN, then use Remote Desktop Client. From HOME Windows to OFFICE Mac: Connect with VPN, then use VNC client.

How do I setup a VPN on my Cisco router?

Let us examine each of the above steps.Step 1: Creating Extended ACL. Next step is to create an access-list and define the traffic we would like the router to pass through the VPN tunnel. ... Step 2: Create IPSec Transform (ISAKMP Phase 2 policy) ... Step 3: Create Crypto Map. ... Step 4: Apply Crypto Map to the Public Interface.

Do Cisco routers have VPN?

Remote VPN access is an extremely popular service amongst Cisco routers and ASA Firewalls. The flexibility of having remote access to our corporate network and its resources literally from anywhere in the world, has proven extremely useful and in many cases irreplaceable.

Which VPN is best for remote access?

Perimeter 81 – Best all-round business VPN. Jul 2022. ... GoodAccess – Security Strategy Options. Apps Available: ... ExpressVPN – Lightning Fast VPN. ... Windscribe – VPN with Enterprise-Friendly Features. ... VyprVPN – Secure VPN with Business Packages. ... NordVPN – Security-first VPN. ... Surfshark – VPN with Unlimited User Connections.

Is VPN considered remote access?

A remote access virtual private network (VPN) enables users who are working remotely to securely access and use applications and data that reside in the corporate data center and headquarters, encrypting all traffic the users send and receive.

How do I enable IPSec on a Cisco router?

To configure the IPSec VPN tunnel on Cisco 881 ISR:Configure the ISAKMP Policy. ... Enable NAT Keepalive. ... Configure the IPSec Peer. ... Define the IPSec Transform Set. ... Enable IPSec Fragmentation. ... Configure the IPSec Profile. ... Create the Tunnel Interfaces. ... Create the Access Control List (ACL)More items...

How do I setup a VPN tunnel?

Preshared key authenticationIn the administration interface, go to Interfaces.Click Add > VPN Tunnel.Type a name of the new tunnel.Set the tunnel as active and type the hostname of the remote endpoint. ... Select Type: IPsec.Select Preshared key and type the key.More items...

What is L2TP over IPSec?

L2TP over IPSec is a combination of the Layer 2 Tunneling. Protocol and of the IPSec standard protocol. L2TP over IPSec allows you, while providing the. same functions as PPTP, to give individual hosts access to your network through an encrypted IPSec tunnel.

How do I see tunnels on my Cisco router?

From the Wired Client, browse to http://dcloud.cisco.com/ to access the Cisco dCloud UI and then log in with your Cisco.com credentials. Use the Bandwidth Test to verify that the port needed for VPN connectivity (TCP 443) is not blocked at your site. From the Wired Client, ping AD1 at 198.18. 133.1.

How do I enable IPSec?

How do I enable IPSec on a machine?Right click on 'My Network Places' and select Properties.Right click on 'Local Area Connection' and select Properties.Select 'Internet Protocol (TCP/IP)' and click Properties.Click the Advanced button.Select the Options tab.Select 'IP security' and click Properties.More items...

How do I access my home network remotely?

Check out the Remote Desktop utility. It takes a little configuration to set up: You have to add users to a “remote desktop” group, forward a port through your router's firewall to your target system, grab the router's IP address, and connect to your local system using Remote Desktop on your remote PC.

How do I connect to my company VPN?

Connect to a VPNIn Settings, select Network & internet > VPN.Next to the VPN connection you want to use, select Connect.If you're prompted, enter your username and password or other sign-in info.

How do I access a server remotely?

Remote Desktop to Your Server From a Local Windows ComputerClick the Start button.Click Run...Type “mstsc” and press the Enter key.Next to Computer: type in the IP address of your server.Click Connect.If all goes well, you will see the Windows login prompt.

What is Cisco IOS firewall?

Cisco IOS software provides an extensive set of security features with which you can configure a simple or elaborate firewall, according to your particular requirements. When you configure Cisco IOS firewall features on your Cisco router, you turn your router into an effective, robust firewall.

How does IPSec work?

In IPSec tunnel mode, the entire original IP datagram is encrypted, and it becomes the payload in a new IP packet. This mode allows a network device, such as a router, to act as an IPSec proxy. That is, the router performs encryption on behalf of the hosts. The source router encrypts packets and forwards them along the IPSec tunnel. The destination router decrypts the original IP datagram and forwards it on to the destination system. Tunnel mode protects against traffic analysis; with tunnel mode, an attacker can only determine the tunnel endpoints and not the true source and destination of the packets passing through the tunnel, even if they are the same as the tunnel endpoints.

What is IPSEC used for?

IPSec can be used to protect one or more data flows between a pair of hosts, between a pair of security Cisco 7200 series routers, or between a security Cisco 7200 series router and a host.

How to configure a policy map?

To configure a policy map and create class policies (including a default class) comprising the service policy, use the first global configuration command to specify the policy-map name. Then use the following policy-map configuration commands to configure policy for a standard class and the default class. For each class that you define, you can use one or more of the following policy-map configuration commands to configure class policy. For example, you might specify bandwidth for one class and both bandwidth and queue limit for another class.

Where is NAT configured?

NAT is configured on the router at the border of a stub domain (referred to as the inside network) and a public network such as the Internet (referred to as the outside network ). NAT translates the internal local addresses to globally unique IP addresses before sending packets to the outside network.

Step1. Define the authentication and authorization methods used

In this case, we’re defining a new group called VPN which will use the local database for authenticating and authorizing the user.

Step 3. Define the VPN client group profile

We are going to name the group VPNGROUP. This is the group name that will be entered in the VPN client. Enter the preshared secret here, and a POOL name, which defines what IPs that will be handed out to the VPN clients. Then assign the name of the ACL that will be used to define the encrypted traffic that will be allowed through the VPN.

Step 4. Create a the address Pool and the access-list used for traffic encryption

Setup the IP ranged to be assigned to the address pool. In this case the starting IP is 10.100.3.1 and the last IP that can be assigned is 10.100.3.254

Step 7. Lastly, assign the crypto map to the internet interface

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Introduction

This document provides the steps required to add a new L2L VPN tunnel or a remote access VPN to a L2L VPN configuration that already exists in an IOS router.

Prerequisites

Ensure that you correctly configure the L2L IPSec VPN tunnel that is currently operational before you attempt this configuration.

Background Information

Currently, there is an existing L2L tunnel set up between the HQ office and BO1 office. Your company has recently opened a new branch office (BO2). This new office requires connectivity to local resources that are located in the HQ office.

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Introduction

Prerequisites

  • Requirements
    Ensure that you correctly configure the L2L IPSec VPN tunnel that is currently operational before you attempt this configuration.
  • Components Used
    The information in this document is based on these software and hardware versions: 1. Two IOS routers that run software versions 12.4 and 12.2 2. One Cisco Adaptive Security Appliance (ASA) that runs software version 8.0 The information in this document was created from the devices i…
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Background Information

  • Currently, there is an existing L2L tunnel set up between the HQ office and BO1 office. Your company has recently opened a new branch office (BO2). This new office requires connectivity to local resources that are located in the HQ office. In addition, there is an additional requirement to allow employees the opportunity to work from home and securely access resources that are loc…
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Add A Remote Access Vpn to The Configuration

  • This is the network diagram for this configuration: In this example, the feature called split-tunnelingis used. This feature allows a remote-access IPSec client to conditionally direct packets over an IPSec tunnel in encrypted form, or to a network interface in clear text form. With split tunneling enabled, packets not bound for destinations on the...
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Verify

  • Use this section to confirm that your configuration works properly. The Output Interpreter Tool (registered customers only) (OIT) supports certain show commands. Use the OIT to view an analysis of showcommand output. 1. ping—This command allows you to initiate the L2L VPN tunnel as shown.
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Troubleshoot

  • Refer to these documents for information you can use in order to troubleshoot your configuration: 1. Most Common L2L and Remote Access IPSec VPN Troubleshooting Solutions 2. IP Security Troubleshooting - Understanding and Using debug Commands Tip: When you clear security associations, and it does not resolve an IPsec VPN issue, then remove and reapply the relevant …
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Related Information

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