IBM Cloud IP ranges

Current IP ranges (CIDRs) used by the IBM Cloud infrastructure, updated daily.

curl -O https://cloud-ip-ranges.com/download/ibm-cloud.txt

Blocking IBM Cloud

iptables

curl -sO https://cloud-ip-ranges.com/download/ibm-cloud.txt
while read ip; do
  iptables -A INPUT -s $ip -j DROP
  iptables -A OUTPUT -d $ip -j DROP
done < ibm-cloud.txt

ufw

curl -sO https://cloud-ip-ranges.com/download/ibm-cloud.txt
while read ip; do
  ufw deny from $ip
  ufw deny to $ip
done < ibm-cloud.txt

fail2ban

sudo tee /etc/fail2ban/filter.d/ibm-cloud-block.conf << EOF
[Definition]
failregex = ^.*$
ignoreregex =
EOF

sudo tee /etc/fail2ban/jail.d/ibm-cloud-block.conf << EOF
[ibm-cloud-block]
enabled = true
filter = ibm-cloud-block
action = iptables-allports[name=ibm-cloud]
logpath = /tmp/ibm-cloud.txt
findtime = 1
bantime = -1
maxretry = 1
EOF

curl -so /tmp/ibm-cloud.txt https://cloud-ip-ranges.com/download/ibm-cloud.txt
sudo systemctl restart fail2ban

pfSense / OPNsense

curl -sO https://cloud-ip-ranges.com/download/ibm-cloud.txt
# Firewall > Aliases: new alias IBM-CLOUD_BLOCK, type Network(s), import the file
# Firewall > Rules > WAN: Action=Block, Source=IBM-CLOUD_BLOCK

About

These IP ranges are sourced directly from IBM Cloud's official feeds and are updated regularly to ensure accuracy. The data includes IPv4 and IPv6 ranges used by IBM Cloud's infrastructure worldwide. Last update was about 3 hours ago.

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