Junos firewall filters are basically just a series of if/then statements. “IF the traffic matches these conditions, THEN take these actions”. Junos calls these if/then statements “terms”.
The key is "Terms are evaluated in order"
Term 1 says from {...} then log, so the traffic will be logged only and proceed to the next term because term 1 has no "Deny/Reject/Discard" action.
The next term is Term 2 which has action "reject". This means that the firewall filter processing ends here and no more terms are looked at.
So the answer should be "logged and rejected"
The following blog explains Junos filters in a great detail.
https://www.networkfuntimes.com/a-beginners-guide-to-junos-firewall-filters/You can also test this in Juniper vlabs.
https://jlabs.juniper.net/vlabs/Best Regards,
TJ Panesar
Solutions Architect | JNCIE-DC #506
713-906-8571 mobile
TJ.Panesar@gdt.com
Original Message:
Sent: 3/19/2024 4:05:00 AM
From: Dhikra Marghli
Subject: RE: How does the firewall filter work ??
i wait some one answer me
Thanks
------------------------------
Dhikra Marghli
------------------------------
Original Message:
Sent: 03-18-2024 01:21
From: Dhikra Marghli
Subject: How does the firewall filter work ??
Hello
please i want some one help me
[edit firewall filter test ]
term 1 {
from {
source-address {
10.0.0.0/8;
}
}
then {
log;
next term;
}
}
term 2 {
then {
reject ;
}
}How is traffic, sourced from 10.0.0.0/8, treated by the firewall filter shown in the exhibit?
A. logged and discarded
B. logged and rejected
C. logged with no further action
D. logged and accepted
so i want expert juniper help me for this question and explain me
Thanks
------------------------------
Dhikra Marghli
------------------------------