# How to configure Bro to listen on multiple interfaces

**URL:** <https://community.zeek.org/t/how-to-configure-bro-to-listen-on-multiple-interfaces/5298>\
**Category:** Zeek\
**Created:** [May 9, 2018, 4:45pm UTC](https://community.zeek.org/t/how-to-configure-bro-to-listen-on-multiple-interfaces/5298 "2018-05-09T16:45:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Charles\_Mckee](https://avatars.discourse-cdn.com/v4/letter/c/8491ac/32.png) [@Charles\_Mckee](https://community.zeek.org/u/Charles_Mckee)\
**Post date:** [May 9, 2018, 4:45pm UTC](https://community.zeek.org/t/how-to-configure-bro-to-listen-on-multiple-interfaces/5298/1 "2018-05-09T16:45:35Z")

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Hello Bro,

I have been researching the net and cannot find a clear way for my scenario.

I have bro in standalone mode, it has been running but now we added another nic to bro and want Bro to monitor on that nic as well keeping it in standalone mode.

How can I make this happen, please can one how me what and where I need to make changes ?

Respectfully Yours

Charles McKee

**Decisiv**** _E_ ****dge** \*\*, LLC\*\*

**O:** 302.299.1570 x432 **|**  **C:** 302.320.6968 **|**  **F:** 302.299.1578

[131 Continental Dr | Suite 409 | Newark, DE 19713](https://maps.google.com/?q=131+Continental+Dr+%7C+%C2%A0Suite+409+%C2%A0%7C+%C2%A0Newark,+DE+19713&entry=gmail&source=g)

[charles.mckee@decisivedge.com](mailto:charles.mckee@decisivedge.com) **|** [www.DecisivEdge.com](http://www.decisivedge.com/)

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<div class="post-metadata">

**Author:** ![Patrick\_Kelley](https://avatars.discourse-cdn.com/v4/letter/p/a87d85/32.png) [@Patrick\_Kelley](https://community.zeek.org/u/Patrick_Kelley)\
**Post date:** [May 9, 2018, 5:31pm UTC](https://community.zeek.org/t/how-to-configure-bro-to-listen-on-multiple-interfaces/5298/2 "2018-05-09T17:31:19Z")

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```auto
Assuming you're using broctl,

```

```auto
add:

broargs = -i eth2 

```

```auto
 to your broctl.cfg file

```

**Patrick Kelley, CISSP, C|EH, ITIL**  
_Principal Security Engineer_  
[patrick.kelley@criticalpathsecurity.com](mailto:patrick.kelley@criticalpathsecurity.com)

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\
**Post date:** [May 6, 2022, 3:45pm UTC](https://community.zeek.org/t/how-to-configure-bro-to-listen-on-multiple-interfaces/5298/3 "2022-05-06T15:45:46Z")

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