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Configure Question: How to enable PING on Interface link state down

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  • 1.  Configure Question: How to enable PING on Interface link state down

    Posted 08-15-2017 07:30

    Hi!

     

    I can't find it in the cli:

    Is there a way to get the srx to respond to ICMP packets whether the physical interface is up or down.

    I know you can achieve this on an CISCO device, but I can't find a solution on srx devices.

    The background is, that I want to monitor a VPN tunnel and there is only one PC connected directly to the srx.

    Sometimes the PC is powered off and the link state goes down and it seems to me that the VPN tunnel went down.

     

    Kind regards

     

    Andy



  • 2.  RE: Configure Question: How to enable PING on Interface link state down
    Best Answer

     
    Posted 08-15-2017 10:40

    You can't do that.

    As a workaround you can assign one of the unused LAN IP with 32 bit netmask (/32) to lo0.0 interface and ping it instead of physical interface address.

     

    Regards, Wojtek



  • 3.  RE: Configure Question: How to enable PING on Interface link state down

    Posted 08-15-2017 13:34

    In additionto what , you would need to be doing some external logging such as to a syslog/snmp server and then have those send you an alert. You could also use an event srcipt to trigger an alert action.



  • 4.  RE: Configure Question: How to enable PING on Interface link state down

    Posted 09-05-2017 03:55

    Thanks!

    That did the trick.

    But since I use an IP address from the subnet I'm using on my vlan.0, I had to configure proxy-arp on vlan.0

    set interfaces vlan unit 0 proxy-arp

    Thanks for your help!!

     

    Cheers

     

    Andy