FM / iproute2

/etc/iproute2

Name	Size	Mode	Actions
bpf_pinning	85	0644	edit dl rm
ematch_map	81	0644	edit dl rm
group	31	0644	edit dl rm
nl_protos	262	0644	edit dl rm
rt_dsfield	735	0644	edit dl rm
rt_protos	219	0644	edit dl rm
rt_realms	112	0644	edit dl rm
rt_scopes	92	0644	edit dl rm
rt_tables	87	0644	edit dl rm

Edit: /etc/iproute2/rt_protos (219B)

# # Reserved protocols. # 0 unspec 1 redirect 2 kernel 3 boot 4 static 8 gated 9 ra 10 mrt 11 zebra 12 bird 13 dnrouted 14 xorp 15 ntk 16 dhcp 18 keepalived 42 babel 99 openr 186 bgp 187 isis 188 ospf 189 rip 192 eigrp