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[caclmgrd] Allow more ICMP types #4625

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May 21, 2020
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[caclmgrd] Allow more ICMP types #4625

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4 changes: 4 additions & 0 deletions files/image_config/caclmgrd/caclmgrd
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Original file line number Diff line number Diff line change
Expand Up @@ -265,11 +265,15 @@ class ControlPlaneAclManager(object):
# TODO: Support processing ICMPv4 service ACL rules, and remove this blanket acceptance
iptables_cmds.append("iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT")
iptables_cmds.append("iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT")
iptables_cmds.append("iptables -A INPUT -p icmp --icmp-type destination-unreachable -j ACCEPT")
iptables_cmds.append("iptables -A INPUT -p icmp --icmp-type time-exceeded -j ACCEPT")

# Add iptables/ip6tables commands to allow bidirectional ICMPv6 ping and traceroute
# TODO: Support processing ICMPv6 service ACL rules, and remove this blanket acceptance
iptables_cmds.append("ip6tables -A INPUT -p icmpv6 --icmpv6-type echo-request -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p icmpv6 --icmpv6-type echo-reply -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p icmpv6 --icmpv6-type destination-unreachable -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p icmpv6 --icmpv6-type time-exceeded -j ACCEPT")

# Add iptables/ip6tables commands to allow all incoming Neighbor Discovery Protocol (NDP) NS/NA/RS/RA messages
# TODO: Support processing NDP service ACL rules, and remove this blanket acceptance
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