Re: Howto mangle with NFT

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MATT-NFT <matt-nft@xxxxxxxxxxxx> wrote:
> i'm reading all of the nft wiki but it's still not clear to me howto
> configure the nft mangle options.
> With iptables i'm successfull using these ip commands
> # ip rule add fwmark 5 table 50
> # ip route add default via 10.0.x.y table 50
> 
> And then create the iptables mangle rule:
> # iptables -A PREROUTING -t mangle -i ethX -s 192.168.x.y -p TCP --dport 80
> -j MARK --set-mark 5
> 
> How would i do this with nft?

You can use iptables-translate:

# iptables-translate -A PREROUTING -t mangle -i ethX -s 192.168.0.1 -p TCP --dport 80  -j MARK --set-mark 5
nft add rule ip mangle PREROUTING iifname "ethX" ip saddr 192.168.0.1 tcp dport 80 counter meta mark set 5

You can adapt that to your needs, e.g. adjust saddr, change iifname,
omit 'counter', etc.
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