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# 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
186 bgp
187 isis
188 ospf
189 rip
192 eigrp