IPsec (Internet Protocol Security) is a protocol for securing IP communications by authenticating and encrypting each IP packet of a communication session.

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IPSec bandwidth between two Pfsense hosts has predictable, variable bandwidth

I have a IPSec tunnel between two Pfsense machines. Both machines are connected to a 100mbps symmetrical connection. The latency between the two routers is ~70ms. I'm using AES-GCM-128 and SHA1, both ...
4
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291 views

Restrict access to RD Gateway based on IP

I'm trying to restrict who can access our RD Gateway based on both their group membership and IP address (so people in group A can only access the system from IP address X). The Network Policy Server ...
4
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191 views

Cisco ASA ipsec vs Anyconnect client issue

So I have an iPad that has a IPSec VPN created. I am able to connect from the outside fine and I can access my local LAN files just fine. When I connect with the Cisco AnyConnect client from the same ...
4
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465 views

IPSec + L2TP + NAT-Traversal does not work for multiple clients behind same nat

I have recently configured a VPN server hosted in AWS EC2. Details: Centos 6.4, openswan, xl2tpd, NAT-traversal. The configuration works great for a scenario when only one user connects form a given ...
4
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818 views

How do I configure OpenSwan to allow pure IPsec (not L2TP) connections from an iPhone?

Similar to this question, I want to configure an IPsec server on Linux which will accept connections from the iPhone. However, unlike the other question, I want to be able to test with pre-shared keys ...
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645 views

Trying to get a new user up on pfSense IPSec VPN; Config file import failed, now getting gateway errors

Caveat: I am not a sysadmin, so please forgive the n00bness of the query. We have a new user and I'm trying to get them up on VPN. We use pfsense as an IPSEC endpoint. This person is using Shrewsoft ...
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10 views

VPN ERROR 500 STATE_MAIN_I1, unable to start phase2

i'm trying to set up a site to site vpn to a fortigate 60c from a CentOS 7 with openswan, the error i get everytime is the following 000 #1: "office":500 STATE_MAIN_I1 (sent MI1, expecting MR1); ...
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363 views

Firewall “Connection Security” when there is no trust and NATing between the two computers

First a little explanation of my network topology. I have a internal domain, and edge network domain. There is no trust between the two domains (and IT will not allow a one way trust to be set up ...
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50 views

Does Windows support IPComp?

The title says it all. I've configured an IPSec IKEv2 connection between a Strongswan server and a Windows 7 workstation and I'd like to use compression if possible. The config on both sides is dead ...
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54 views

IPsec - strange behavior

I have set up site-to-site ipsec connection between linux(debian) and mikrotik router. The tunnel is up linux configuration: config setup interfaces=%defaultroute keep_alive=60 ...
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2k views

Allowing LDAP authentication from DMZ to Active Directory. Is my idea secure?

I have a internet-facing application server that I want to use AD authentication. This is my first time doing this for a none MS application or without some sort of proxy. I already have a idea in my ...
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234 views

Having trouble installing Racoon and Strongswan on the same system

I have two applications that I need to run, one uses Racoon for establishing IPSec tunnels and the other uses Strongswan. Therefore, I need both Racoon and Strongswan installed simultaneously on my ...
2
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1k views

Site-to-site VPN between Azure Virtual Network and a Cisco RV016

I'm attempting to configure a Cisco RV016 router to connect to an Azure Virtual Network to create a site-to-site VPN, but it's not working. I'm aware that a Cisco RV016 is not in the list of ...
2
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0answers
3k views

ipsec IKE phase 1 failure

I have a wireless gateway that supports site-to-site IPSec. I have configured openswan on Ubuntu Server 12.04 (left side of the tunnel) with the following /etc/ipsec.conf: version 2.0 config setup ...
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214 views

Sending L2tp/IPsec PSK client packets to OpenSwan server

I'm trying (kind of) to create VPN client, I set my server on Ubuntu using OpenSwan (L2tp/IPsec PSK). What I'm doing right now is sending packets to my server and trying to exchange my keys with the ...
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3k views

Debian squeeze as L2TP/IPSec gateway for Android devices

I'm trying to configure Debian squeeze as L2TP/IPSec VPN for Android devices, but with no great success. So far I have done following: Successfully configured Debian with openswan implementation of ...
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553 views

configuring IPsec with IPV6

I am working with racoon tool and ipsec-tools and I have been able to connect two devices with IPSEC working in transport mode. However, I did it with IPv4 addresses and when I change them to IPV6 ...
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670 views

Getting ipsec-tools to work between Ubuntu Lucid hosts

I have two hosts, one is Charity with IP 67.207.128.184, the other is Hope with IP 67.207.130.204. I've installed the ipsec-tools package on each host. I have not installed racoon on either host. ...
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4 views

Microsoft Message Analyzer and Windows Advanced Firewall ipsec tunnel packet sniffing

I am trying to view connections or attempted connections in windows advanced firewall. I have tried using the Windows Firewall Service provider however the trace does not return anything. Any ideas?
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21 views

IPsec Security Associations prevail even after IPsec tunnel is down

I am working on a script that can detect if existing IPsec tunnels on a system have gone down. From my observations, I have seen that it can take any where between 1 second to 8 minutes for this to be ...
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47 views

openswan IPSEC site to site randomly disconnects on debian server

goodmorning my friends, this is my situation: I have two debian servers with static IP connected through a site to site VPN OPENSWAN, everything works like a charm, I can ping the entire lan from any ...
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59 views

Windows Firewall Connection Security with Certificate (2)

I have a similar problem as the question with the same title from last October. On a Windows Server 2008 machine, using Windows Firewall's Connection Security rules, I need to establish an IPsec ...
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256 views

FreeBSD L2TP/IPsec not routing traffic to vpn server

I have configured a VPN server on my FreeBSD server, it all seems to be running, but the VPN traffic is not routing through to the local VPN server and I cannot figure out as to why. So my question ...
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335 views

PfSense IPSec VPN client

I am new in PfSense I have configured site to site VPN and it works fine, "Site A" ( PfSense) and "Site B" ( SonicWall) both can access each other LAN network. Now i have also configured IPSec Mobile ...
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486 views

Creating redundant IPSec connections using OpenSwan

I have a linux (netkey) instance with openswan installed, the instance has two connection to the same IPSec peer that needs to act as redundant connections. both connections' properties are the same ...
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322 views

Shorewall: DNAT to IPSEC tunnel zone not routing correctly

I have a ipsec tunnel working that gives access to a 192.168.4.0/24 lan. It is working fine and I can access hosts on the other side without problem: # from fw and lan hosts: # ping 192.168.4.44 PING ...
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32 views

IPSEC on linux with multiple remote ISP

I have configured 2 ipsec VPN connection from my linux server to my clients locations. the reason being the client has two ISPs a primary and a secondary on. The client wants to switch to secondary ...
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1k views

Cannot connect to IPSEC/L2TP VPN Arch Linux/Windows 8

I have check a lot of other L2TP/IPsec VPN post and none of them seem to quite match the issues I am having so here is what going on. I am trying to set up a VPN on my Arch Linux server that I can ...
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255 views

Route between two branch offices via IPsec VPN to head office?

I have TMG 2010 running on Server 2008 R2 in our head office with 2 branch offices connecting in using Dray Tek 2930 routers with IPsec site to site VPNS. The remote sites can route between the head ...
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406 views

Is it possible to do IPSec Site to Site VPN without static & public IP on one end?

I am working on a project for my engineering degree that requires me to interface with some pre-existing equipment, so I am rather limited on my options. I'm rather new to VPN and ipsec for that ...
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67 views

is there any cisco-compatible ipsec+comp module?

I am looking for a waqy to establish an Ipsec tunnel(with lzs-compression enabled) between a cisco router and a host(using strongswan or sth else). I can establish a tunnel without lzs-compression. ...
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73 views

Windows server 2003 ipsec error

I have a Windows Server 2003 domain controller and a bunch of clients. Something happened and now IPSec service fails on the server. After IPSec fails to start, all TCP/IP traffic is blocked to the ...
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1k views

Cannot access L2L VPN from RA VPN connected client on Cisco ASA 5510

We have a Cisco 1921 router running IOS 15.1 at one of our branches which is connected via a L2L IPsec VPN to a ASA5510 running ASA 7.2 at our headquarters. The ASA also provides IPSec Remote Access ...
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219 views

IPsec connection established but xl2tpd times out

This may or may not be related to my problem with passing ipsec verify. I have configured L2TP/IPsec VPN on Ubuntu 13.04 following Ubuntu's community documentation and while IPsec connection seems ...
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33 views

Multiple IPsec tunnels implented with raccon - need tunnel specific debug output

I have a network appliance box serving as an end point for several site to site IPsec VPN tunnels. raccon's docs specify that a log file can be written to with the -l option. My clunky approach to ...
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678 views

How Windows establishes L2TP/IPSEC VPN connection without “IPSec ID” (group id)?

I have a third-party VPN server configured with only 4 credentials given to me: server ip, preshared key, user name and user password. Under Windows 7, i can easily connect to this VPN via standard ...
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309 views

Issue Routing along IPSEC VPN

I am struggling to get two different subnets routing along a IPSec tunnel. The tunnel is between a Vyatta (6.5) and a Juniper firewall. The tunnel was initially created to route between a subnet in ...
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383 views

racoon pure IPSEC VPN, best way to give vpn server an IP address on the VPN?

We are testing a VPN server for DR. We have a rackspace cloud instance, with a pure IPSEC VPN server running in racoon, serving "road warrior" clients. We have some NAT going on on the server to route ...
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66 views

Windows 2k3 IPsec policy. Block all traffic prevents IPSec communication

I'm looking to harden down A Win2k3 server that talks to a branch over an IPsec tunnel based connection. Windows 2k3 firewall doesn't offer control of outbound communications, so I've turned to the ...
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1k views

ASA Slow IPSec Performance with Inconsistent Window Size

I have a IPSec link between two sites over ASA 5520s running 8.4(3) and I am getting extremely poor performance when traffic passes over the IPSec VPN. CPU on the devices is ~13%, Memory at 408 MB, ...
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204 views

Running a VPN server and a captive portal on the same machine with a DNS too

I don't know if this can be done but I'm asking anyways. Let's say that I've an Ubuntu machine with OpenSwan and xl2ptd to handle incoming VPN connections. Now, what I need to do is something like ...
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91 views

List of valid Vendor ID in Vendor ID payload

I have some logs from a VPN with lines like this one: Ignoring Vendor ID payload [4a131c8107035845...] Can I use the hexadecimal code there to identify what kind of hardware attempted to establish ...
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81 views

Can I make Windows 7 process the IPsec INITIAL-CONTACT message?

Windows 7 seems to ignore the IPsec INITIAL-CONTACT notification described in RFC 2407. Is there a setting to make it process the message? When Windows receives the notification, it should delete its ...
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555 views

Android devices fail to connect to MS L2TP PSK

I have configured MS Server 2003 RRAS with IPSec / L2TP using PSK. iPhone devices connect fine however Android devices fail to connect. The MS "Oakley" trace file shows the negotiations for Apple and ...
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654 views

L2TP & IPSec (OpenSwan) on Centos time out when connecting

I'm having big trouble setting up a very simple VPN. Using Centos 6. My Server Address : 61.34.26.32 (fictive) Whenever I try to connect (from iPhone5 or MacOS X) i get a connection timeout. I ...
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166 views

Peer to peer ipsec tunnel - virtual network interface

I'm trying to create an IPSEC tunnel between two machines (not between two networks). Using ipsec-tools, TUNNEL mode. I think I can cope with all those add and spdadd, but how to create a virtual ...
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103 views

IPSEC-tools config

Once I run setkey with the following config file, add 1.1.1.1 2.2.2.2 esp 2000 -E aes-ctr 0x3333333333333333333333333333333333333333; add 3.3.3.3 2.2.2.2 esp 2000 -E aes-ctr ...
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647 views

iPhone doesn't save password for Cisco IPsec VPN using racoon daemon

On my Debian server I had set up racoon daemon (1:0.8.0-14) for Cisco IPSec VPN using certificates for authentication. My racoon.conf is like following: log info; path certificate ...
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6k views

pfSense IPsec VPN setup (Log error: racoon: INFO: unsupported PF_KEY message REGISTER)

Good morning, I'm trying to setup an IPSec Tunnel on a pfSense firewall. I have 2 interfaces configured: WAN (public firewall IP: .../31) LAN (internal static IPs: 192.168.104.0/29) I set up the ...
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1k views

Strongswan configuration to Cisco

We have an issue configuring Strongswan to a Cisco router. The connection is made, but I'm not getting the routing correct. There are multiple networks behind the router on the remote side (operated ...