Cfrgtkky

my first post here.

I made an script that provide reports of my network every 5 minutes. The script is simple and is working fine except when there is issues in my network. The script is running in Ubuntu Server 18.04.

My line for the Ping command is:

ping -w 300 192.168.1.216

The issue consist when I am having packet losses, ping stop immediately an doesn't finish the 300 seconds (5 minutes) run. I checked online and everywhere but I haven't been able to find a solution to make the ping keep running when there are lost packets. This is an example:

ping -w 300 192.168.1.216

PING 192.168.1.216 (192.168.1.216) 56(84) bytes of data.

64 bytes from 192.168.1.216: icmp_seq=1 ttl=128 time=2.29 ms

64 bytes from 192.168.1.216: icmp_seq=2 ttl=128 time=4.14 ms

64 bytes from 192.168.1.216: icmp_seq=3 ttl=128 time=17.9 ms

64 bytes from 192.168.1.216: icmp_seq=4 ttl=128 time=40.6 ms

64 bytes from 192.168.1.216: icmp_seq=5 ttl=128 time=38.6 ms

From 192.168.1.2 icmp_seq=30 Destination Host Unreachable

From 192.168.1.2 icmp_seq=31 Destination Host Unreachable

From 192.168.1.2 icmp_seq=32 Destination Host Unreachable



--- 192.168.1.216 ping statistics ---

33 packets transmitted, 5 received, +3 errors, 84% packet loss, time 32657ms

rtt min/avg/max/mdev = 2.295/20.738/40.659/16.379 ms, pipe 4

Thanks.

EDIT REASON: Add full script code.

Full script code:

Location="XXX"

host="192.168.6.1"



while true

do

    result=$(ping -w 300 -q $host)



    sendemail                                               

            -f "xxxx@gmail.com"                             

            -u "XXX 5 Minutes Network Report"               

            -t "pingreport@gmail.com"                       

            -s "smtp.gmail.com:587"                         

            -o tls=yes                                      

            -xu "xxxx@gmail.com"                            

            -xp "password"                                  

            -m "$result"

done

This is to check the status of our VPN. Like I said is a very simple script. I am using the ping -c 1 as suggested for an emergency one that will let us know if there is connectivity issues in the VPN as soon as possible.

I would consider changing your script to run ping -c 1 <ip-address> every five minutes, instead of relying on the ping binary to provide that behavior. Then you can also check the return status ($?) to determine if it succeeded or failed.

It would be helpful if you also post your script, so that the context of your problem can be more easily understood.