WAN Failover Time to live exceeded



  • Hello!

    Pfsense 2.4.4-RELEASE (amd64) built on Thu Sep 20 09:03:12 EDT 2018 FreeBSD 11.2-RELEASE-p3

    WAN1 - primary default WAN (Static IP) - Tier1
    WAN2 - backup WAN (Static IP) - Tier 2
    LAN - Local network

    System\Routing\Gateway Groups\Edit GW_FAILOVER

    Tier1 - WAN1
    Tier2 - WAN2
    Trigger Level Packet Loss or High Latency

    All work perfect if :

    1. I unplug network cable WAN1
    2. Electricity fails on provider switch WAN1
    3. As an experiment, I put a switch in the gap . If unplug network cable from provider side, also all work. I wanted to see how pfsene responds if the link remains and the internet goes down.

    But if the main (WAN1) provider fails the network core - switching providers does not work. Also WAN2 gateway also becomes unavailable. If unplug WAN1 , WAN2 becomes available.

    In these moments, the ping gives incomprehensible things

    user@User-PC:~$ ping GATEWAY_IP
    PING GATEWAY_IP (GATEWAY_IP) 56(84) bytes of data.
    From 195.94.226.86 icmp_seq=1 Time to live exceeded
    From 195.94.226.86 icmp_seq=2 Time to live exceeded
    From 195.94.226.86 icmp_seq=3 Time to live exceeded
    From 195.94.226.86 icmp_seq=4 Time to live exceeded
    From 195.94.226.86 icmp_seq=5 Time to live exceeded
    From 195.94.226.86 icmp_seq=6 Time to live exceeded
    From 195.94.226.86 icmp_seq=7 Time to live exceeded
    From 195.94.226.86 icmp_seq=8 Time to live exceeded
    ^C
    --- GATEWAY_IP ping statistics ---
    8 packets transmitted, 0 received, +8 errors, 100% packet loss, time 7010ms
    

    How to make the switching of providers work out successfully at these moments?



  • Hello there! I'm sorry but your words aren't as clear as they should be for getting help back on your issue. Thus if you can make a diagram would be much better. Also as far as I've grasped from your post, I would like to suggest switching the mode of fail over from "packet lost" to "member goes down" and observe the issue. Let's see what you will get back.

    Good luck