Internet Protocol Security (IPsec) is a protocol suite for securing IP communications by authenticating and/or encrypting each IP packet of a communication session.
Questions tagged [ipsec]
282 questions
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Facing trouble while connecting GCP VPN from local computer
I am trying to connect GCP VPN from my local work station (windows 8.1).
On GCP, I have created Route Based VPN and VPN tunnel as google cloud's documentation. I have used IKEv2 on routing.
On my local computer I have created a VPN over IPSec using…

hasnayn
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How to allow allow unrestricted local machine communication in Win2k8 for IPSec Local Security Policy?
I need to block all IP on a network and give unrestricted access to 3-4 computers.
So I have created IP Sec policy as follows:
IP List 1: added to 4 IPs and associated a filter to Permit
IP List 2: added to Any IP Address and associated a filter…

Abhi
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Can I modify VPN configuration file?
When you create a VPN connection with Amazon VPC, Amazon offers a configuration file for different router brands. This file can be downloaded as soon as the VPN creation is done.
So the natural procedure is to start the configuration process in…

John Smith
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TLS or IPSec with AES for IoT security
We need to find a way to protect the data from the IoT devices to the cloud server. We use MQTT for the messaging.
Since we use STM32 in our IoT devices, TLS seems not a viable solution as there is only very limited ROM(about 60K) on the STM32…

vaj oja
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Debian vServer: Cannot connect to VPN with multiple devices in same network
I set up a VPN on my virtual Server using openswan, xl2tpd and ppp (see this tutorial: https://raymii.org/s/tutorials/IPSEC_L2TP_vpn_with_Ubuntu_14.04.html).
So I am talking about a L2TP/IPSec VPN with a PSK.
The problem I have:
I can connect a…

schokomueller
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Is it secure to pass login credentials as plain text over Ipsec enabled server and client
I have server and client applications communicating over the TCP socket that is desktop applications. I have enabled Windows IP-sec between server and client machine so that my network traffic would be encrypted. During the login process client…

Imtiaz Basra
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no dns via ipsec tunnel android 4.4.2 xperiaz C6603 racoon
I've setup a racoon server on my linux router. It was working ok with my xperiaz (C6603) road warrior. However after I applied the latest update to android 4.4.2 (firmware 10.5.A.0.230) it stopped working correctly. I have ping from the phone to…

Jimmar6
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Strongswan RoadWarrior VPN-Config
I want to setup an VPN-Server for my local web traffic (iPhone/iPad/MacBook).
So far I managed to setup basic configuration with CA & Client-Cert.
For the moment my client can connect to the server and access server resources, but has no route to…

Boris
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ipv6 loopback interface ( ::1/128 )
What could be the reason for loopback interface ( ::1/128 ) not getting added on the routing table?
I am using command to check : "route -n inet6 -A"
Sometimes, there is no entry for the loopback interface.
Please note : ipv6 is enabled.

Kanishka Dutta
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Forwarding traffic from IPsec tunnel
Setup:
IPsec tunnel between Router (192.168.50.1) and linux host computer (192.168.50.10).
i want to forward the traffic (that arrived through the tunnel to the host compouter)
from the host computer to the outer network.
setting ip_forward=1…

user1316037
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Implementing IPSEC Protocol
I want to implement a IPSEC protocol in java.
I want to know how to create our own protocol.
And how to embedded this protocol with packet.
Please provide some code example so that it is easy to understand.

Anant
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Script awk v. sed for modifying ipsec.conf
I am creating a script that I can run and it will simply ask me the common location name...i.e SEC-DF1 and it will fetch the ip of that site from within script. My problem is taking that IP and replacing…

Dan
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