icmp(4) on OpenBSD
The text c68def902012, as OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2, OpenBSD 2.1 shipped it.
Internet Control Message Protocol
The text c68def902012, as OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2, OpenBSD 2.1 shipped it.
Internet Control Message Protocol