# Filebeat cisco ios Parsing delimeter error

**URL:** <https://discuss.elastic.co/t/filebeat-cisco-ios-parsing-delimeter-error/344432>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [October 4, 2023, 10:00pm UTC](https://discuss.elastic.co/t/filebeat-cisco-ios-parsing-delimeter-error/344432 "2023-10-04T22:00:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lee.clemens](https://avatars.discourse-cdn.com/v4/letter/l/85f322/32.png) [@lee.clemens](https://discuss.elastic.co/u/lee.clemens)\
**Post date:** [October 4, 2023, 10:00pm UTC](https://discuss.elastic.co/t/filebeat-cisco-ios-parsing-delimeter-error/344432/1 "2023-10-04T22:00:10Z")

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Hello,

I'm seeing this runtime error being logged parsing deny logs from IOS:

GoError: could not find beginning delimiter: `list ` in remaining: `F0/0: fman_fp_image: list ACL_Inbound denied udp 127.0.0.1(51052) -> 127.0.0.1(161), 1 packet`, (offset: 0)

event.module: cisco  
event.dataset: cisco.ios  
log.flags: dissect\_parsing\_error

The system is RHEL 7.9  
filebeat-8.10.2-1.x86\_64

Seems to be a bug?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 2, 2023, 12:00am UTC](https://discuss.elastic.co/t/filebeat-cisco-ios-parsing-delimeter-error/344432/2 "2023-11-02T00:00:58Z")

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