)
Values for subcodes of PC/TCP error 1Ch "NET_ERR_ICMPMESG":
 07h	unrecognised
 08h	can't fragment
 09h	srcr_fail
 0Ah	source quench
 0Bh	time exceeded
 0Ch	parameter problem
 0Dh	admin_prohib. see also code 0Ah
SeeAlso: #03319,#03320