What version of SA are you using? How are you forcing SA to go over the VPN? What does SA show as error for the down?
Dirk Bulinckx Follow us on Linkedin: <https://www.linkedin.com/company/bvba-woodstone-/> https://www.linkedin.com/company/bvba-woodstone-/ Servers Alive - http://www.woodstone.nu <http://www.woodstone.nu/> StellarDNS (DNS Hosting) - http://www.stellardns.com <http://www.stellardns.com/> _____ From: Salive [mailto:[email protected]] On Behalf Of Bob Hartung Sent: Thursday, April 06, 2017 8:37 PM To: Servers Alive Discussion List Subject: [SA-List] Ping Issues over VPN Hi, I have a pair of Sophos UTM firewalls that provide a VPN between two locations. On my end we are on a 172.16.x.x subnet and at the other end it's 172.17.x.x. I am using Servers Alive (SA) to ping test 10 different devices on the 172.17.x.x end of the VPN but SA frequently shows that the devices are down when they actually are up. I have SA configured with the Sophos UTM ping test as the primary connection and then the rest of the devices dependent on the Sophos being up. I have played around with the timeout value set as high as 25 ms on all the devices as well as dropping the success % down to 50 but I still am getting frequent false downs. I verify whether there's a down condition by command-line pinging or remotely accessing devices while SA indicates Down. I also have a ping utility called Ping Plotter that keeps a history of periodic pinging that shows ping success/fail as well as average response time which is roughly 75 ms and very infrequent fails. Any suggestions on SA settings that might fix my false downs? --------------------------- Bob Hartung, Dir of I.T. Wisco Industries, Inc. 736 Janesville St. Oregon, WI 53575 Tel: (608) 835-3106 x215 Fax: (608) 835-7399 e-mail: bhartung(at)wiscoind.com website: www.wiscomade.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam paign=sig-email&utm_content=emailclient> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam paign=sig-email&utm_content=emailclient> --- This email has been checked for viruses by AVG. http://www.avg.com
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