-0,echo-reply (pong),0
+0,echo-reply,0
1,destination-unreachable,3
2,network-unreachable,3/0
3,host-unreachable,3/1
20,host-redirect,5/1
21,TOS-network-redirect,5/2
22,TOS-host-redirect,5/3
-23,echo-request (ping),8
+23,echo-request,8
24,router-advertisement,9
25,router-solicitation,10
-26,time-exceeded (ttl-exceeded),11
+26,time-exceeded,11
27,ttl-zero-during-transit,11/0
28,ttl-zero-during-reassembly,11/1
29,parameter-problem,12