Questions tagged [vpn]

For questions about Virtual Private Networks (VPNs).

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VoIP over VPN (FritzBox) – can register, can call, but no sound [closed]

We have a small company network here (192.168.178.x) and a private network in home office (192.168.2.x). These networks are both running a FritzBox router and are connected via VPN trough FritzBox to ...
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14 views

Is split tunneling working if www.whatismyip.com is not detecting my IPv6 address? [closed]

I'm trying to determine if split tunneling is working with my companies VPN. I'm assuming my IP address should remain the same if connected and that my location will remain the same? And that this ...
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15 views

AnyConnect won't connect once profile has been set up [closed]

Setting up a new VPN for a client, and connections work fine with vpn.contoso.com, but once the connection has been established, disconnected, and anyconnect has been restarted, the address is ...
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1answer
59 views

Slow(er) network speed due to possible VPN configuration issue?

CONTEXT I have an VPN connection between 2 ASA-5515's set up between our main site and new back up site. This is to replace our old backup site we have which is currently connected between an ASA-...
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1answer
40 views

EIGRP to BGP to EIGRP

I would like to ask if it is possible to implement eigrp routing sent through bgp? I wanted to route from PC-1 to PC-2 using EIGRP. The connection between all of the three routers are through BGP ...
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17 views

Cisco PPTP server available routes protocol

I have a 2921 Cisco router in one place, and a Windows XP computer on another. I made my Cisco router as PPTP server, and my XP computer as a client. The router is located within a LAN with address ...
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0answers
43 views

Network transfer speed slow, possible VPN configuration issue? [closed]

CONTEXT I have an VPN connection between 2 ASA-5515's set up between our main site and new back up site. This is to replace our old backup site we have which is currently connected between an ASA-...
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1answer
51 views

What special reserved domain could I use for virtual organization private network? [closed]

Suppose we have a inner-facing network that spans several geographical jurisdiction - this network can only accessed from our offices with special HSM installed, and we want to enable domain-name-...
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1answer
33 views

Sonicwall: force all traffic from specific source through VPN

We have a main office (M) with a Sonicwall TZ215, and a branch office (B) with a TZ210. Computers in B access the server in M through a site-to-site VPN between the two Sonicwalls. Internet traffic ...
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2answers
46 views

What does a VPN Tunnel offers other than encryption?

A VPN tunnel is end to end encrypted. But does it gurantee to provide features other than encryption, such as low latency, low jitter etc?
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1answer
31 views

Site to Site VPN between Cisco C800 and Sonicwall

I would like to have Tunnel based (route based) vpn between Sonicwall with Public IP 1.2.3.4 and cisco c800 with dynamic IP. In case of dynamic VPN, i learnt that vpn mode would be aggressive mode ...
2
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1answer
47 views

How is traffic correctly routed in Site-to-Site VPNs where all sites are on the same subnet?

http://rockhoppervpn.sourceforge.net/ref_site2site_bridge_6.html The diagram on this page shows all 3 sites using the same subnet, 192.168.0.0/24. Let's say on the hub site where 192.168.0.10 is the ...
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0answers
14 views

VPN on ubiquiti [closed]

i created a VPN on a ubiquiti USG. When i connnect, i can't ping to a server on the remote network. The server is ip 192.168.13.15. I get ip 192.168.100.1. I tried to change the networks, but that ...
2
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1answer
44 views

Cisco 5505 ASA firewall Ipsec vpn- Can connect two outside different public ip to two different local subnets

I only get one IPSEC vpn connection up but not the other. Link to access configs on Google: https://drive.google.com/open?id=1yB_yIWvJ51A0UeNbkAEiTH9YMIEipqy_ profile1- outside interface - 66.x.x.x ...
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3answers
91 views

What is the purpose of a VPN?

A VPN connects a PC, smartphone, or tablet to another computer (called a server) somewhere on the internet. But, i could comunicate to another pc even without a VPN, so what is the purpose of using it ...
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1answer
30 views

PPTP encapsulation process

i am learning networking and vpn technologies now and i have some problems with understanding the whole PPTP encapsulation process. So i will write steps of PPTP encapsulation process (as i understand ...
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1answer
30 views

GRE Encapsulation

i am learning networks and tunneling and i have problems with understanding some things about GRE. The structure of tunneling below: [Transport Protocol][ensapsulationg protocol(GRE)][encapsulateed ...
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1answer
35 views

Device on VLAN is accessible from VPN but not from LAN

I have a Meraki MX84 with two VLANs, 192.168.213.0/24 (main subnet), and 10.4.213.0/24. I have an EdgeRouter 12P connected to the MX with static WAN IP 10.4.213.2. The issue is: when I VPN into the MX ...
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1answer
31 views

A VPN that could search, filter & block website [closed]

I want to block a large number of websites (like thousands to millions) from the MacBook and iPhones and my initial solution was using /etc/hosts file to block websites in the MacBook and using Mobile ...
2
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1answer
93 views

Can I set the AnyConnect group policy from users source IP?

Is it possible to configure a Group Policy to be used based on the source IP of the AnyConnect user? I want users connecting from a specific location (IP address) to get a specific Group policy. ...
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1answer
17 views

IP-Sec VPN Tunnel Established Between 2 Remote Machines. Why Can't Machines In Their Subnets Connect Across? [closed]

Have 2 Remote Ubuntu Machines in different subnets. one: 192.168.1.0/24 Two: 192.168.2.0/24 Established VPN tunnel between 2 machines, 1 in each subnet. Their IPs: Public IPs 1.1.1.1 2.2.2.2 ...
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2answers
130 views

Cisco ASA IKE Receiver: Runt ISAKMP packet discarded on Port 500

I have lots of ikev1 tunnel running on our production Cisco ASA5585 and today i have configured ikev2 tunnel for one of our new customer and i have started seeing following error, and not sure what is ...
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40 views

Cisco ASA Security Warning: Untrusted server cert after asa crash and reload

We have Cisco ASA 5505 working VPN anyconnect and it's been almost 1 year no issue, but last week it got crashed and reboot itself and after that we found it started throwing warning like following: ...
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0answers
22 views

Chckpoint Remote Access VPN Multiple ISP external interface [closed]

I'm in a situation where I have to suggest the best solution when client has two ISP connected to a checkpoint firewall cluster. AFAIK, we cannot activate or make use of two external interfaces for ...
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2answers
25 views

'Flat' FlexVPN Network Design with multi gateways [duplicate]

The use case is a meshed ip radio network where the radio's move around alot. Multiple gateway's (FlexVPN Spokes) are statically located to re-bridge the meshed radio network when the radio's travel ...
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2answers
67 views

'flat' network design

Is it possible to have a Hub and spoke FlexVPN setup where every spoke has the same LAN subnet. I need to configure 6 spokes with the same subnet at each node., I was thinking NAT but I need to access ...
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3answers
69 views

IPSec VPN timers query

I have a couple of queries related to the IPSec VPN and I believe someone would clarify my doubts. Why IKE Lifetime and IPSec Lifetime is used? Can't we just run the VPN without re-negotiating? Why ...
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1answer
34 views

VPN to a current subnet ID

I am sure this is a fairly basic question, but the standard google searches have not told me what I am looking for. I have a restaurant that uses an ipad point of sale on a dedicated subnet id: 192....
4
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1answer
239 views

Cisco ASA IPsec tunnel QM FSM error

I am setting up Cisco 5585 ASA for IPsec tunnel with one of cloud company. we already have lots of tunnel for various cloud provider and life if good but recently this tunnel giving me hard time to ...
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1answer
68 views

Tacacs+ over VPN is not working

R3 is a Tacacs+ client and Server0 is configured as AAA server with Tacacs+ but R3 is not able to authenticate. R3 Configuration: ! version 15.4 no service timestamps log datetime msec no service ...
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1answer
28 views

Access List With Site To Site VPN

I have two juniper firewalls, an SSG-320M (screenos) and an SRX 340 (junos). I'm required to connect to a third party with an IPSEC VPN, however I'd like some additional protection from my firewall. ...
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1answer
50 views

Cisco IOS RA VPN with internal NAT

We have a Cisco 871 setup with a remote access VPN which works fine. However we now need the RA-VPN to be able to access an IP on the LAN which only speaks with an authorised subnet. IP addresses as ...
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1answer
30 views

IPsec VPN route in Checkpoint

I have created a ipsec VPN from site A (Cisco) to Site B (checkpoint R77.20). At site B, i have a static 1-1 NAT applied: ipx --ipy Tunnel is live and connection up; I can telnet my site B system ...
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1answer
17 views

Connect VPN with same Private Network [closed]

i have my Private Network on my Apartment that is 192.168.1.x/24 and in the Office we have Private Network 192.168.1.x/16. Is it possible to connect them through VPN, but i will not change my private ...
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0answers
46 views

IPsec tunnel with multiple networks NATed [closed]

I'm trying to set up an IPsec connection between two sites: our Azure network and our client's local network. To be flexible and avoid any current or potential future IP range overlappings I wand to "...
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1answer
51 views

What is the difference between VPN and Domain fronting?

What is Domain fronting? and how it is different from a VPN?
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1answer
44 views

Multiple virtual UTP cables over one physical?

Say there is a physical UTP cable running from point A to point B. At A there are two physically isolated devices, a1 and a2, each running their own network and unaware of each other's existence. So ...
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1answer
42 views

Dynamic DNS and VPN [closed]

I have a few PCs/services that I want to access remotely, which are inside a VPN and gets assigned local IP addresses using DHCP. How can I setup dynamic DNS to access the PCs on their internal VPN ...
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1answer
121 views

How can I accomplish VPN across Dual Wan connections?

How can I accomplish VPN across Dual Wan connections in a optimal way? Idea is to make: Site to site VPN. Make single connection inside the VPN to use full bandwidth of both wan connections using (...
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0answers
78 views

Why is bgp used for AWS and gcp VPNs and not another routing protocol? [closed]

I use AWS and gcp. Both of these cloud platforms have the ability to establish a VPN connection from a VPC in the cloud to an on-premise router or another cloud VPN endpoint. They both use bgp ( and ...
0
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1answer
55 views

Setup VPN to access company's internal network without NAT [closed]

Below is how the network looks like, the left is my home, and the right is my office. Now I want to connect to office intranet(192.168.0.0/24, R3). We don't have any vpn device that directly connects ...
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1answer
361 views

Traceroute through IPSec tunnel

askk Hi. When I do traceroute from host 192.168.11.0/24 to the server 10.0.0.0/24, which is site B. When the packets get into the public area it show Request timed out (as shown in this figure). I'm ...
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0answers
303 views

pfsense in multi-WAN: OpenVPN route all traffic through VPN, how to set the gateway?

I have an OpenVPN running on pfSense in a CARP with multi-WAN. OpenVPN listens on all incomming (0.0.0.0) so that I can enter throu what ever WAN is active right now should one go down. When I ...
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0answers
145 views

Unable to Initiate a VPN tunnel using IKEv2 [closed]

I'm having an issue with a VPN tuunel between my Firewall (ASA 5516-X) and a third party firewall so I can't check the config in the second firewall. So I decide to debug my firewall and I realized ...
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3answers
94 views

Understanding how VPNs work?

I am trying to understand how VPNs work. Most of the posts/blogs on the internet say that all your traffic is routed through a VPN server. This sounds like proxy to me?? Another point that is commonly ...
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1answer
35 views

VPN server acting as a client for another VPN server [closed]

I was wondering if it's possible to have a VPN server that goes though another VPN server. Here a scenario that might explain my idea better: I have 4 computers 'A' - My Windows machine 'B' - My VPN ...
3
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2answers
600 views

Configuring Cisco ASA DAP policies from CLI! (Automating bulk task)

So I have given a task to add 1000s of DAP policies after main DAP file crashed and backup is not available due to unfortunate reasons. There is predefined way of doing it through ASDM which is very ...
1
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1answer
66 views

AWS connectivity UDP works but TCP times out

I have some issues here I have built an L2l VPN from my location to AWS London, I can see that the tunnel is up but when I attempt to connect our local domain controller here in our office to AWS ...
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2answers
1k views

VPNs are working in which layer of the OSI model? [closed]

How many types of VPN is out there and in which layer of the OSI model are they working?
4
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2answers
102 views

Is Cisco IPsec different from ordinary IPsec?

Is Cisco IPsec different from ordinary IPsec? Although Windows 10 has built-in VPN support for L2TP/IPSec, it does not support IPSec provided by Cisco. Thus, we generally need to install hand-made ...

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