Nevermind, figured it out....:-) -----Original Message----- From: netfilter-owner@xxxxxxxxxxxxxxx <netfilter-owner@xxxxxxxxxxxxxxx> On Behalf Of Andreas Hoefler Sent: Donnerstag, 25. Juni 2020 09:51 To: netfilter@xxxxxxxxxxxxxxx Subject: callback on adding tables from mnl_cb_run for nftables Hi all I would like to use a callback when adding tables with libnftnl and libmnl with mnl_cb_run. I tried to build the message header with nftnl_table_nlmsg_build_hdr and NLM_F_CREATE | NLM_F_ACK | NLM_F_ECHO. But it does not seem to trigger the callback provided on mnl_cb_run but still returns 0. Any ideas? Thx a lot Andy