18. Mikrotik Schedul+Script check WANs to internet

/system scheduler
add disabled=yes interval=5s name=ping_google_link_B on-event=scheduler-B \
    policy=\
    ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api \
    start-date=jan/01/1970 start-time=00:00:00
add interval=5s name=ping_google_link_Both on-event=scheduler-Both policy=\
    ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api \
    start-date=jan/01/1970 start-time=00:00:00
add disabled=yes interval=5s name=ping_google_link_A on-event=scheduler-A \
    policy=\
    ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api \
    start-date=jan/01/1970 start-time=00:00:00

Script fro Schedule A:

#set variables
:local pingcount  3
:local ipA 192.168.89.74
:local ipB 192.168.73.74

#ping gateways with src
:local pingresultA [/ping 8.8.8.8 src-address=$ipA count=$pingcount]
:local pingresultB [/ping 8.8.8.8 src-address=$ipB count=$pingcount]

#if link_A is UP
:if (($pingresultA=3)) do={
#send email
/tool e-mail send subject=($ipA . " is up ") \
body=("the gateway is up now at: " . [/system clock get date]) \ to=("alertphalla@gmail.com") tls=yes

#enable scheduler-Both
/system scheduler set [find name=ping_google_link_Both] disabled=no
#disablescheduler-B
/system scheduler set [find name=ping_google_link_B] disabled=yes
#disable scheduler-A
/system scheduler set [find name=ping_google_link_A] disabled=yes

}

Script fro Schedule B:

#set variables
:local pingcount  3
:local ipA 192.168.89.74
:local ipB 192.168.73.74

#ping gateways with src
:local pingresultA [/ping 8.8.8.8 src-address=$ipA count=$pingcount]
:local pingresultB [/ping 8.8.8.8 src-address=$ipB count=$pingcount]

#if Link_B is UP
:if (($pingresultB=3)) do={
#send email
/tool e-mail send subject=($ipB . " is up ") \
body=("the gateway is up now at: " . [/system clock get date]) \ to=("alertphalla@gmail.com") tls=yes

#enable scheduler-Both
/system scheduler set [find name=ping_google_link_Both] disabled=no
#disable scheduler-A
/system scheduler set [find name=ping_google_link_A] disabled=yes
#disable scheduler-B
/system scheduler set [find name=ping_google_link_B] disabled=yes

}

Script fro Both Schedules:

#set variables
:local pingcount  3
:local ipA 192.168.89.74
:local ipB 192.168.73.74
:global state no

#ping gateways with src
:local pingresultA [/ping 8.8.8.8 src-address=$ipA count=$pingcount]
:local pingresultB [/ping 8.8.8.8 src-address=$ipB count=$pingcount]

#if link_A is DOWN and link_B is UP then:
:if (($pingresultA=0) && ($pingresultB>0)) do={
#send email
/tool e-mail send subject=($ipA . " is down") \
body=("the gateway is down now at: " . [/system clock get date]) \ to=("alertphalla@gmail.com") tls=yes

#disable scheduler-A
/system scheduler set [find name=ping_google_link_A] disabled=no
#disable scheduler-B
/system scheduler set [find name=ping_google_link_B] disabled=yes
#disable scheduler-Both
/system scheduler set [find name=ping_google_link_Both] disabled=yes
}

#if link_A is UP and link_B is DOWN then:
:if (($pingresultA>0) && ($pingresultB=0)) do={
#send email
/tool e-mail send subject=($ipB . " is down") \
body=("the gateway is down now at: " . [/system clock get date]) \ to=("alertphalla@gmail.com") tls=yes

#disable scheduler-B
/system scheduler set [find name=ping_google_link_B] disabled=no
#disable scheduler-A
/system scheduler set [find name=ping_google_link_A] disabled=yes
#disable scheduler-Both
/system scheduler set [find name=ping_google_link_Both] disabled=yes

}

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