PIKE-750 — PIKE monitor received packet of other than current protocol version
The PIKE monitor is made to understand some subset of obsoleted protocol version. If it receives a packet with not current but supported version, it switches its output routines so that they will produce the same version like the partner.
The W level message means that it received a packet with higher or lower protocol version than the supported ones. The packet will be ignored.
The N level message means that it received a packet with a supported protocol version. Protocol downgrade will occur.