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[caclmgrd] Don't limit iptables connection tracking to TCP #4796

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Jun 18, 2020
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[caclmgrd] Don't limit iptables connection tracking to TCP #4796

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6 changes: 3 additions & 3 deletions files/image_config/caclmgrd/caclmgrd
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Original file line number Diff line number Diff line change
Expand Up @@ -258,9 +258,9 @@ class ControlPlaneAclManager(object):
iptables_cmds.append("ip6tables -A INPUT -s ::1 -i lo -j ACCEPT")

# Add iptables/ip6tables commands to allow all incoming packets from established
# TCP sessions or new TCP sessions which are related to established TCP sessions
iptables_cmds.append("iptables -A INPUT -p tcp -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p tcp -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT")
# connections or new connections which are related to established connections
iptables_cmds.append("iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT")

# Add iptables/ip6tables commands to allow bidirectional ICMPv4 ping and traceroute
# TODO: Support processing ICMPv4 service ACL rules, and remove this blanket acceptance
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