debug with tcpdump

[michelelaporta]

Hi Shubham, I would like to know how to use tcpdump in order to analyze traffic. My setup:

• baremetal with:
  • vagrant agw
  • vagrant srsra
    • srsue container
    • srsenb container

I take this tcpdump:

sudo tcpdump -i any -w srs_attach.pcap

on all interfaces of baremetal machine but I only see encrypted packets. Is there a way to setup a clear channel? If yes how to do it?

Thanks

Michele

[ShubhamTatvamasi]

Hi Michele, you can just use the MME IP like this:

sudo tcpdump host 192.168.60.142 -i any -w srs_attach.pcap

Thanks

[michelelaporta]

Thanks now I see S1AP packets.