Questions tagged [vpn]

For questions about Virtual Private Networks (VPNs).

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14 views

Is Windows Server safe to stay visible on the Internet or should create a VPN via a rounter and connect to internal network? [closed]

I wanted to orginize a central server based on Windows Server 2019 for my employees to access internal Windows-only software. My first idea was to forward rdp port on the router, but then I remembered ...
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1answer
41 views

IPSec IKEv2 on pfSense: "parsed INFORMATIONAL request 2 [ N(AUTH_FAILED) ]"

I am trying to setup an IPSec IKEv2 VPN Network on a pfSense. The pfsense is situated directly behind the modem. I connect to it by a static IP address. There is no double NAT. I followed this ...
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13 views

Personal VPN sub-network accessible through Work VPN? [closed]

I currently access my work network via Cisco VPN. At work, I have my own three computers and NAS on a personal dedicated router using my own DHCP. For several reasons, I do not want these computers to ...
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1answer
63 views

Site-to-Site VPN with Sophos XG using tunnel interface

So I have configured a Sophos XG site-to-site vpn according to this document: https://docs.sophos.com/nsg/sophos-firewall/18.0/Help/en-us/webhelp/onlinehelp/nsg/sfos/learningContent/...
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1answer
45 views

Why is the VPN throughput reduction different when using a cellular network and when using Ethernet? [closed]

I built a VPN server using openvpn as a protocol and measured the throughput between server and client. There are significant throughput reduction at cellular network. Throughput decreased by more ...
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1answer
114 views

Cisco IOS -> ASA VTI tunnel not routing traffic

I have a VTI tunnel configured between two devices (ASR and ASAv). The tunnel comes up fine and is stable, however traffic appears to be unidirectional, from the ASR -> ASAv but not in the reverse ...
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1answer
55 views

Internal network inside an internal network

I have the task to integrate 4 PCs (1 server, 3 workers) into a local network (from a bigger organization). The admin of that network only allows me to integrate the server directly into the network (...
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1answer
123 views

Unifi Dream Machine Expose IPSec to L2TP

I'm trying to expose IPSec VPN connections to Remote L2TP VPN on a Unifi Dream Machine and Unifi Security Gateway, both running latest firmware and controller version (6.2.25). We have two offices. ...
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1answer
46 views

VPN/IPsec router support in Packet Tracer

I would like to know, if a router doesn't support VPN (meaning it can't be used as a VPN server) can it still route an IPsec packet? And which router I should use as a server for IPSec (AH tunnel mode)...
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40 views

Multiple Site-To-Site VPN

I'm trying to set a VPN that allows all site: site0-4 to communicate with each other. The site called otherSite should not be in the VPN. Note that there's a NAT for site 0, 1 and 2 but site 3,4 only ...
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1answer
49 views

Site to site vpn setup

I am trying to set up a small network for my startup. We have 2 small servers at separate locations and would like to set up a vpn thorugh which the 2 servers can talk to each other and through which ...
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0answers
160 views

IKEv2 between Cisco router and Google cloud VPN

Hey I'm trying to create a tunnel between cisco router and google cloud vpn (client site) but the connection is stuck on stage 2 (UP-IDLE), need help where the problem may lie. Some debug that I get ...
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1answer
69 views

WatchGuard Geo Location for restricting access to VPN and "Access Portal"

Problem We want to use WatchGuard's Geo Location to restrict access to our "Access Portal" and "Mobile VPN" connections, but see no options and the corresponding "Firewall ...
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65 views

UNIFI USG GATEWAY IPSEC OVER L2TP VPN [closed]

At my office I have a Unifi USG Gateway that currently has 3 IPSEC VPN Tunnels (Lan-To-Lan VPN) configured. I also have a L2TP Remote VPN Network configured so that when I'm outside of my office I can ...
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1answer
26 views

what is significance of proxy id while configuring site to site vpn tunnel . why we should use proxy id and in which scenarios

i came know about proxy id configuration for first time. when iam troubleshooting site to site vpn tunnel configuration along with vendor . post configuring proxy id issue got resolved . But iam still ...
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2answers
46 views

Concurrent site-to-site VPN tunnels through dual ISPs (with 2 couples of Cisco ASA) between same devices

I currently have a simple site-to-site VPN setup, connecting machines from site 1 to site 2 through 1 ISP, using a set of ASA 5506X. All is good. I'd like to "double" that setup for ...
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17 views

MPLS provider A L3VPN to MPLS provider B migration

i have a Datacenter infraestructure with a mpls of SP A, and i would like to migrate to another wan line of a different SP B. Mpls current circuit is providing L3 VPN service, one VPN per remote site. ...
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0answers
651 views

Cisco site-to-site VPN tunnel Failed to find a matching policy [closed]

I have PaloAlto (PA) and Cisco ASA 5585-X located on two different sites, trying to configure IPsec VPN tunnel. [PA]-----------(internet)-----------[Cisco ASA] If i ping from Cisco ASA side lan to PA ...
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1answer
116 views

How to connect to different VLANs through VPN

I have the following setup: I have setup a Layer 3 Switch with multiple VLANs Multiple devices are connected to it on different VLANs via untagged access ports There is also a router connected to the ...
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1answer
101 views

VPN with Cisco virtual ASA on Azure not routing correctly

I've deployed a Cisco virtual ASA in Azure to use as a VPN server. For simplicity, I'm using just the management interface as the lan for the time being (10.2.0.4 is the interface). I want to use the ...
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1answer
17 views

VPN protected resource and accessible via authenicated API - design [closed]

let's imagine a simple system deployed on GCP. There is public, authenticated (token, IP whitelisting) API exposed by our system. There is a protected resource R (SQL database) that is accessible by ...
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26 views

Does modifying a ASA tunnel create a downtime?

I inherited a cisco ASA, I never really had to manage one before. But, I need to modify an existing tunnel to add IP addresses to both the local and remote traffic selector, specifically there are ...
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1answer
135 views

Can a server on the other end of a site-to-site vpn be exposed (NATd) to a public IP on an ASA

AWS DataCenter ----------- site-to-site VPN ------------ http server <=======================> Cisco ASA public address 10.0.1.59:443 ...
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0answers
38 views

Router on one side of a GRE tunnel not adding OSPF route through the tunnel whilst the router on the other side is

I have configured GRE tunnel between the Dublin and Carlow routers with the following commands: //Carlow int tunnel 0 ip address 172.16.12.1 255.255.255.252 tunnel source s0/0/0 tunnel destination 87....
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28 views

Why public VIF must be used in AWS Direct Connect + VPN setup?

I am unsure why public VIF must be used in AWS Direct Connect + VPN setup. Usually if you are connecting to Virtual Private Gateway you should use private VIF as shown in AWS Managed VPN Diagram on ...
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2answers
32 views

Is connecting via 2 VPNs secure

I know there are VPN services like Speedify that you can connect to with 2 internet connections wired and wifi to combine them on their servers to get a faster connection and then connect to what you'...
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1answer
75 views

Cisco IPsec VPN tunnel problem

I have a problem with VPN configuration. This is the topology I created: First updated licenses to make the VPN available: license boot module c1900 technology-package securityk9 IPsec Router ...
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1answer
61 views

MPLS-BGP - VPN isolation - RFC 4364

In Section 6 of RFC-4364, it is stated that, if MPLS is being used as the tunneling technology (in the scope of forwarding VPN-IPV4 traffic from one PE to an other) , this means that a router in the ...
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24 views

OSPF in DMVPN phase 1,2 and 3

What difference in DMVPN Phase 1, 2 and Phase 3 if we use OSPF?
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1answer
19 views

What is a child tunnel? [closed]

I only heard this term today, but it was explained to me as a point-to-point VPN (so, two routers with a VPN tunnel established between them) and a firewall configured to only allow certain hosts to ...
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0answers
103 views

Users after login are redirected to the ASA AnyConnect download page rather than connecting to the VPN

Several users after logging in are redirected to the ASA AnyConnect download section instead of connecting to the VPN. We try to log in via Web or AnyConnect application by using SAML Identity ...
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37 views

Editing a crypto map with multiple entries

We're attempting to bring up an IPSEC tunnel with a Vendor. An engineer created the crypto map and wasnt able to establish a connection. I edited the entry to change the diffie-hillman group and the ...
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47 views

L2TP/IPSec on Cisco ISR G2 issues

I am using several ISR G2 routers (819, 2901, etc) configured as L2TP/IPSec VPN concentrators. With current configuration it works good, but there are two odd things about it. I used standard ...
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1answer
40 views

Easiest setup to replace jumpbox forwarding [closed]

In order to connect to some of machines, what I currently do is: Connect to VPN (using AnyConnect) SSH to my jumpbox via VPN For every single machine that I want to access using ssh, I have to map ...
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1answer
52 views

Is a VPN just a proxy which encryts data to the vpn server?

I have trouble understanding the concept of a VPN in contrast to a proxy. Is it true, that the VPN just encrypts the data which is send from the client to the vpn server and "rest" behaves ...
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1answer
47 views

Site to site ASA Routing question

I am doing a lab about DMVPN and Site to Site ASA integration. There is no problem in the DMVPN. However I have problem in establishing route from Site to Site ASA to DMVPN. The router on the left is ...
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0answers
29 views

Windows L2TP VPN issues when accessing Site to Site VPN on Cisco 5506

We have two Site to Site VPNs and Remote Access VPN configured. Using the builtin IPsec client on OSX all subnets are accessible however when using L2TP built in client on Windows 10 ICMP traffic ...
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1answer
46 views

client <--> server <--> client VPN?

I have the following use case for which I need to figure out a VPN solution. 100+ remote locations Each remote location has several users that should be able to connect to only that remote location ...
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1answer
61 views

What is method to switch group-policy on a tunnel-group upon user login?

We have ASA units that have tunnel-groups that have a particular group-policy defined via default-group-policy statement. This initial group-policy ("NOACCESS") is one that prevents any ...
2
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1answer
62 views

what is significance and role and function lifetime in IPSEC Site to Site VPN . Please explain importance and role of lifetime in VPN

I Came across incident where i need to troubleshoot IPSEC Site to Site connectivity issue . The term "lifetime" confuses me . please anyone explain me importance of lifetime in VPN . Whats ...
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1answer
57 views

What can I use to display VPN instance instead of stelnet?

How can ı connect VPN service with use ssh in Huawei Atn980c ? Which command? I researched but i didnt different command. I found only this command; stelnet x.x.x.x (VPN instance) (service name) (port ...
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0answers
24 views

Please Explain me traffic flow between two peers for ipse site-site vpn traffic , detailed traffic flow please [closed]

please explain me the exact traffic flow between two peers or gateways for IPSEC Site-Site VPN .Like phase 1 ,phase 2 , actual data processing traffic flow .
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1answer
138 views

Confusion about Route based IPSEC site-site vpn and policy based IPSEC site-site VPN

I am confused about the major difference between a policy-based VPN and routed-based site-site Vpn
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1answer
133 views

Juniper QFX Site to Site VPN

Im trying to setup a site to site vpn between two Juniper QFX5110's. Each end of the link is on the same subnet (so directly connected switches over dark fibre). I have configured each physical ...
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3answers
122 views

But confused about SSL VPN and IPsec Site -Site VPN

What might be difference between sslvpn and site-site vpn . Which one among two is secure and it's significance
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1answer
27 views

VPN operating on layer 3, internal routes are accessible, but how to use it as a 'stepping stone' server for external servers? [closed]

I'm not really sure what my problem/request is called, but this is my situation: I run an OpenVPN Access Server server. It's configured to operate on layer 3. The private subnet it can operate on is ...
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1answer
32 views

routing a network with 2 interfaces and vpns [closed]

I'm pretty inexperienced in network but here is the idea of what i want to do: I have 2 interfaces: Interface #1 = fast internet Interface #2 = stable internet with static ip address this is the ...
2
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2answers
46 views

How to build secure access for cloud machine in small startup [closed]

We have 7 member team (3 dev + 2 qa + 2 Sales). We host our PROD + QA + DEMO server in GCP. As of now, all our PROD/QA/DEMO/DEV/QA-DB/DEV-DB machine are having public IP, so that we can ssh into them. ...
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1answer
568 views

Why do hops before VPN server not reflect in traceroute?

I'm using a remote-site VPN (ProtoVPN). When I tracert to the IP address of the VPN server, the hops through my ISP and other intermediate hops before the VPN sever are shown. But when I tracert to ...
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1answer
45 views

Routing between two sites using FTTC Broadband and E-Band Wireless

I have two sites, both with 80/20 FTTC broadband connections that terminate at the standard white box BT modem. The connections both have fixed IP. I’d like to connect these up to each other and form ...

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