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 Post subject: Juniper Firewall Filters Not Working
PostPosted: Fri May 09, 2014 6:28 pm 
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Joined: Fri May 09, 2014 5:52 pm
Posts: 1
Hey, I'm emulating Junos on GNS3 and it seems that there is something wrong with firewall filters. They do not seem to take effect.

Here is the topology.
Image

I'm pinging from Qemu host to 4.4.4.1 (cisco). The filter is applied at JUNOS1 interface (input) connected with JUNOS2 to discard traffic from 4.4.4.1.

Here is the JUNOS1 config
Image

Here is the output from "Show interface filters" command. Notice the Filter Type "unknown"
Image

I'm continuously able to ping from Qemu host to 4.4.4.1 despite the filter applied at JUNOS1. Am I doing something wrong?




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 Post subject: Re: Juniper Firewall Filters Not Working
PostPosted: Thu May 22, 2014 10:41 pm 
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Joined: Thu May 22, 2014 10:37 pm
Posts: 1
I'm running the same 9.6R1.13 and having the same problem, every filter i try has no effect
No commit fail issues


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 Post subject: Re: Juniper Firewall Filters Not Working
PostPosted: Thu May 29, 2014 2:51 pm 
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Joined: Thu May 29, 2014 2:45 pm
Posts: 1
Please try this u must change input to output and then apply to your interface looks like this

[edit interfaces em3 unit 0]
family inet {
filter ***SEGMENT-100** {
term 1 {
from {
address {
192.168.100.2/32;
}
}
then {
discard;
}
}
}
}

[edit firewall]
em3 {
unit 0 {
family inet {
filter {
output ***SEGMENT-100**;
}
address 192.168.100.1/24;
}
}
}

u must try and fix it side by side ...




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