To perform a packet capture directly on an Adtran device do the following:
ip access-list extended CAPTURE
permit ip any host 18.104.22.168
permit ip host 22.214.171.124 any
Where “126.96.36.199” is the IP that you want to watch. Then run debugging on that ACL:
debug ip packet CAPTURE detail
See https://supportforums.adtran.com/message/2248#2248 for more details.