Keepalive in VPN site to site tunnel I was asked a question by a collegue today if there were any way that a keepalive could be configured so that site to site tunnels would stay up, vs. having to have interesting traffic to allow the ISAKMP
KeepAlive/ Connection Timeout - VPN Setup on IOS Hi, I'm trying to setup a VPN from the built in capability in my Netgear modem/router (D7800), however I keep getting 'Connection Timeout' on the iPad. The router has the latest firmware V1.0.1.10, iPad has IOS 10.0.2 and OpenVPN is 1.0.7 build 199. Hi, the openvpn(8) manpage contains the following text:. 1587 For example, 1588 .B \-\-keepalive 10 60 1589 expands as follows: 1590 1591 .nf 1592 .ft 3 1593 .in +4 1594 if mode server: 1595 ping 10 1596 ping-restart 120 1597 push "ping 10" 1598 push "ping-restart 60" 1599 else 1600 ping 10 1601 ping-restart 60 1602 .in -4 1603 .ft 1604 .fi One of my vendors has a VPN connection to us and the VPN keeps going down. They have suggested that we should do a ping ever minute to keep the VPN up, but the problem is the normal ping command is going down after a re-boot or gets closed by accident. The keepalive option is always added to an OpenVPN server configuration. There are many scenarios where this is not wanted and will prevent the required behavior. In my case, when working with iOS VPN on demand rule-driven behavior, the keepalive had to be removed (by commenting out line 453 in openvpn.inc).
Because OpenVPN tries to be a universal VPN tool offering a great deal of flexibility, there are a lot of options on this reference page for OpenVPN 2.4. This default will hold until the client pulls a replacement value from the server, based on the -keepalive setting in the server configuration.
Keepalive on higher layers. Since TCP keepalive is optional, various protocols (e.g. SMB and TLS) implement their own keep-alive feature on top of TCP. It is also common for protocols which maintain a session over a connectionless protocol, e.g. OpenVPN over UDP, to implement their own keep-alive. Other uses HTTP keepalive keepalive-timeout (integer | disabled; Default: 60) Defines the time period (in seconds) after which the router is starting to send keepalive packets every second. If no traffic and no keepalive responses has came for that period of time (i.e. 2 * keepalive-timeout), not responding client is proclaimed disconnected: mac-address (MAC; Default: ) Solved: We have VPN's from remote locations using Cisco 861 routers back to an ASA and some to another IOS based router. Wanted to find out what is the best way to keep the VPN's active. We are using "ip sla" feature, but is there
The keepalive interval is the period of time between each keepalive message that is sent by a network device. This is always configurable. The keepalive retries is the number of times that the device continues to send keepalive packets without response before the state is changed to "down".
Since OpenVPN Access Server 1.8.0 a session-token-based authentication system was added. What this does is after successful authentication give the user a unique string of numbers and letters that identifies that user's session. The purpose of this is to not have to remember the user's credentials in memory. there is no keep alive on server settings for openvpn, I think you are confusing it with IPsec. There most definitely is a keepalive setting for the server config file, as outlined in the sample "server configuration file" on OpenVPN's website: OpenVPN keepalive. 0 votes . 613 views 2 comments. asked Mar 28, 2019 in Networks by Johan. Hello, We have a network of RUT240 with OpenVPN clients configured. The server is running on a Linux machine with iptables. As we roam globally, sometimes on very expensive network, I'd like to minimize the ping traffic generated by keeping the tunnel The keepalive interval is the period of time between each keepalive message that is sent by a network device. This is always configurable. The keepalive retries is the number of times that the device continues to send keepalive packets without response before the state is changed to "down". Keepalive on higher layers. Since TCP keepalive is optional, various protocols (e.g. SMB and TLS) implement their own keep-alive feature on top of TCP. It is also common for protocols which maintain a session over a connectionless protocol, e.g. OpenVPN over UDP, to implement their own keep-alive. Other uses HTTP keepalive keepalive-timeout (integer | disabled; Default: 60) Defines the time period (in seconds) after which the router is starting to send keepalive packets every second. If no traffic and no keepalive responses has came for that period of time (i.e. 2 * keepalive-timeout), not responding client is proclaimed disconnected: mac-address (MAC; Default: )