Both websites hitb.org (199.58.210.36) and thc.org (199.58.210.16) have A records part of the Rokabear's CIDR 199.58.208.0/21 and some IPs in that block are res

Both websites hitb.org (199.58.210.36) and thc.org (199.58.210.16) have A records part of the Rokabear's CIDR 199.58.208.0/21 and some IPs in that block are responding as expected i.e. 199.58.208.36 and 199.58.215.36 However not a single IP in the range 199.58.210.0/24 responds to ICMP or TCP probes. My only guess is this is more likely a faulty or misconfig router. # Dirty TCP check nmap -v -Pn -p 80 199.58.210.0/24 # Dirty ICMP check (1 means failure, 0 means success) for i in {1..254}; do echo -n "199.58.210.$i "; ping -c2 "199.58.210.$i" >/dev/null 2>/dev/null; echo " $?"; done