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IDP in transparent mode show interface with Sniffer option as 'Yes'

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Article ID: KB10864 KB Last Updated: 26 Dec 2012Version: 5.0
Summary:
IDP in transparent mode show interface with Sniffer option as 'Yes'
Symptoms:
IDP in transparent mode shows the interfaces with Sniffer option as 'Yes' when the interface setting are checked via ACM or when the command line (sctop with option 's') is run:

    Status for s0 ['Transparent'] [ Up since: 01/05/2008 kernel
    v4.1.99999-idp41r1a

    Packets/second:  0[peak: 0 @ 01/05/2008 16:54:22]
    KBits/second:    0[peak: 0 @ 01/05/2008 16:54:22]
    Layer 2 Frames:  75154

    Latency (usecs): [min: 0] [max: 0] [ave: 0]

    Protocol Packets    Flows      Sessions   Peak       Peak Time
    Other    000      001/05/2008 16:54:22
    ICMP     000      001/05/2008 16:54:22
    UDP      000      001/05/2008 16:54:22
    TCP      000      001/05/2008 16:54:22

    Current policy: all_with_logging-Copy v0

    Name      Router      IP-Address      Netmask         Sniff  
    eth1      vr0         n/a             n/a             yes     
    eth2      vr0         n/a             n/a             yes     
    eth3      vr0         n/a             n/a             yes     
    eth4      vr0         n/a             n/a             yes   
Cause:

Solution:

It is normal to see "Sniff" option shown as "Yes" in case of Transparent Mode.

In Transparent mode, interfaces listen for all types of traffic irrespective of the MAC address so the Sniff option is shown as Yes.  

The sniff mode on the interface cannot be changed; it appears by default once the sensor deployment mode is selected.

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