Disabling modules within conntrack causes VyOS to fail to load the configuration:
modules { gre { disable } nfs { disable } pptp { disable } sqlnet { disable } tftp { disable } }
Errors like the following are the result:
rmmod: ERROR: Module nf_nat_proto_gre is not currently loaded rmmod: ERROR: Module nf_conntrack_proto_gre is not currently loaded [[system conntrack]] failed Commit failed