Questions tagged [vpn]

For questions about Virtual Private Networks (VPNs).

Filter by
Sorted by
Tagged with
0
votes
0answers
16 views

Ubuntu, vpn with SecurID [closed]

Issue, I tried setup and connect to VPN with SecurID, but nothing happened. I have this information about VPN. authentication method: SecurID; SecurID authentication: PinPad. Question, is possible ...
0
votes
0answers
6 views

A solution to respond to TCP SYN/ACK and do packet buffering to retrieve lost packets, in application level [closed]

Operating systems deal with the TCP stack automatically when you open a socket. They respond to SYN/ACK, follow the sequence numbers and hold a buffer to store packets until they request for previous ...
1
vote
1answer
24 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 ...
0
votes
0answers
10 views

gating a socks5 layer onto an ipv4 [closed]

I have a vpn server with multiple ipv4 addresses associated with it on the server. How do I layer a socks5 protocol on each of the ip's given that they are ipv4?
0
votes
0answers
20 views

Draytek Vigor VPN hide-NAT [closed]

I've got an end-user trying to connect their branch office to my site, and they are using a Draytek Vigor 2862. On our side, we expect the branch offices to hide-NAT their traffic before reaching us, ...
0
votes
0answers
7 views

Block any access to a range of IP addresses when my IP is in a specific range [closed]

I am a total noob who wants to make sure my VPN is connected when ever I have any connection (even ssh) to a specific range of IP addresses. I'm using mac.
0
votes
3answers
74 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 ...
0
votes
1answer
35 views

Realistic Benchmarks for Comparing VPN Performance

I'm looking to quantify the performance of different VPN technologies as part of my PhD thesis and want to know if there are any standard metrics for end-to-end performance that are used to compare ...
0
votes
1answer
26 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 ...
0
votes
1answer
28 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 ...
0
votes
0answers
15 views

is crypto ikev2 supported on 1921 router?

is the "crypto ikev2" command supported on Cisco's 1921 ISR g2 router. I'm trying to deploy a site-to-site FlexVPN but the command wouldn't show. I updated the image to c1900-universalk9-mz.SPA.157-3....
0
votes
1answer
31 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 ...
0
votes
1answer
28 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
votes
1answer
39 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. ...
0
votes
0answers
27 views

Dual FlexVPNs with VRFs on a single router

I'm trying to achieve a double wrapped VPN using a single router at both ends. (Tin foiled hat customer) My current chain of thought is HUB |global routing table >Internal VPN> VRF BLACK > ...
0
votes
1answer
15 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 ...
0
votes
2answers
59 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 ...
0
votes
0answers
15 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: ...
1
vote
0answers
21 views

Chckpoint Remote Access VPN Multiple ISP external interface

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 ...
1
vote
0answers
17 views

How can I find a VPN that can improve my ping towards a specifing server? [closed]

I am located in Osaka, and I'm playing an old game (Quake Live) but the only server reachable that is still alive is located somewhere in China (IP 120.76.221.244). I get about 140 ping which is ...
0
votes
2answers
23 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 ...
0
votes
2answers
51 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 ...
0
votes
3answers
60 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 ...
0
votes
1answer
31 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
votes
0answers
76 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 ...
1
vote
0answers
49 views

Mikrotik IPSec VPN Multi Site [closed]

We have a multi-site network with a "Central" facility and multiple "Sites". On each site, we installed a router with capabilities for VPN but always connect to internet through an ISP router. Also, ...
1
vote
1answer
59 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 ...
1
vote
1answer
27 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. ...
0
votes
1answer
41 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 ...
0
votes
1answer
26 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 ...
0
votes
1answer
16 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 ...
1
vote
0answers
35 views

IPsec tunnel with multiple networks NATed

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 "...
0
votes
1answer
40 views

What is the difference between VPN and Domain fronting?

What is Domain fronting? and how it is different from a VPN?
0
votes
1answer
43 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 ...
0
votes
0answers
12 views

Zywall USG 100 IPSec Routing

I own a Zywall USG 100, that manages 5 networks (2 WANs, 3 LANs); I built a site-to-site IPSec VPN with our CED, but now I'd like: to deny access to VPN from 2 of 3 above LANs, forcing them to reach ...
1
vote
0answers
14 views

Isolate a subnet on openvpn [closed]

I'm trying to isolate a subnet in the openvpn with iptables but these clients seems to not obey the iptables rules. My enviroment subnet is 10.50.0.0/24. Every client has a static ip in the network. ...
0
votes
0answers
13 views

Is that possible to create site to site VPN between 2 sites by using a pfsense virtual machine installed in Vmware workstation? [duplicate]

I need to connect 3 sites (Site A,B and C)+ AWS Cloud together over a site to site VPN. Each site should have a VPN tunnel to the cloud Each site should have a VPN tunnel to the other sites ...
0
votes
1answer
29 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 ...
0
votes
1answer
115 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 (...
1
vote
0answers
62 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
votes
1answer
50 views

Setup VPN to access company's internal network without NAT

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 ...
0
votes
1answer
209 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 im using ...
0
votes
0answers
208 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 ...
0
votes
0answers
75 views

Sonicwall Site to Site VPN stops working when “Use this VPN Tunnel as default route for all Internet traffic”

I have two Sonicwall TZ300s that have a site-to-site VPN configuration successfully configured. I am trying to send all remote site VPN traffic to the WAN connection of the Central site. I have ...
1
vote
0answers
97 views

Unable to Initiate a VPN tunnel using IKEv2

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 ...
1
vote
3answers
89 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 ...
-1
votes
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
votes
2answers
401 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
vote
0answers
161 views

How can I disable TLS on my openvpn server? [closed]

I am using PiVPN and set up an openvpn server. Myself and a coworker can connect to the vpn remotely with the generated .ovpn files we imported into openvpn clients. I tried creating a .p12 ...
1
vote
1answer
59 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 ...