# Docker overlay networks **URL:** \ **Category:** Beats\ **Tags:** packetbeat\ **Created:** [March 31, 2016, 8:50am UTC](https://discuss.elastic.co/t/docker-overlay-networks/45899 "2016-03-31T08:50:41Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![marco.gulino](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@marco.gulino](https://discuss.elastic.co/u/marco.gulino)\ **Post date:** [March 31, 2016, 8:50am UTC](https://discuss.elastic.co/t/docker-overlay-networks/45899/1 "2016-03-31T08:50:41Z")
Hi! I'm trying to monitor packets (mainly http, mysql, redis, but it might be anything) using packetbeat on a Docker environment. Using a single docker instance everything works flawlessly, but when I try the same thing using a docker cluster (swarm) with overlay networks packets are no more recognized. Doing a little investigation, it seems that docker networks work over a vlan-like protocol, VxLan. I found an old blog post suggesting how to sniff vxlan packets in wireshark using a Lua script, and I was wondering if something similar is possible within packetbeat too: [http://www.lovemytool.com/blog/2011/11/analyzing-vxlan-packets-using-wireshark-by-srivats-p.html](http://www.lovemytool.com/blog/2011/11/analyzing-vxlan-packets-using-wireshark-by-srivats-p.html) Thanks Marco ---
**Author:** ![steffens](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/steffens/32/79630_2.png) [@steffens](https://discuss.elastic.co/u/steffens)\ **Post date:** [March 31, 2016, 12:38pm UTC](https://discuss.elastic.co/t/docker-overlay-networks/45899/2 "2016-03-31T12:38:27Z")
VxLAN is building a virtual LAN by sending all network layers of virtual network via UDP in outer network. This is currently not supported by packetbeat. Feel free to open a [enhancement request](https://github.com/elastic/beats/issues). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 9:54pm UTC](https://discuss.elastic.co/t/docker-overlay-networks/45899/3 "2017-07-05T21:54:01Z")