Following up on a question that was probably too compact.

man ipsec.conf says that if mark=... is set the mark "can be used with iptables to create custom iptables rules using CONNMARK"

I'm pretty new to connection tracking, however I believe the first question is: does this work with nftables?

The second question is: which conntrack metadata is set by libreswan in nftables? Is it "ct mark"?

Thanks in advance for any hint..



On 2/13/2022 3:11 AM, Manfred wrote:
Hi all,

I'm having trouble with the mark=... option.
ipsec accepts it nicely, but I can't match packets in the firewall rules; also I can't find the mark in /proc/net/nf_conntrack

Thanks in advance for any hint..
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