WIKI [1] stipulates the rule in the ip family table, perhaps logical
since it applies to IPv4 only, It is however possible to include the
rule in the inet family table?
Having it implemented in
table inet filter {
chain input { oif pppoe-wan tcp flags syn tcp option
maxseg size set 1400; }
}
does not throw an error but it does not work either.
Then tried instead (inet family)
{ oif pppoe-wan ip protocol tcp flags syn tcp option maxseg size set 1400; }
{ oif pppoe-wan ip protocol tcp flags syn ip protocol tcp option maxseg
size set 1400; }
But either throwing
Error: syntax error, unexpected flags, expecting newline or semicolon.
What am I missing to get this to work in the inet family table?
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[1] https://wiki.nftables.org/wiki-nftables/index.php/Mangle_TCP_options