matthew/sonic-buildimage
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[caclmgrd] Filter DHCP packets based on dest port only (#4995)

Browse Source
This commit is contained in:
Joe LeVeque 2020-07-17 11:16:19 -07:00 committed by Guohan Lu
parent 52e45e823e
commit 3f3fcd3253
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
files/image_config/caclmgrd/caclmgrd
View File

@ -232,12 +232,12 @@ class ControlPlaneAclManager(object):
iptables_cmds.append("ip6tables -A INPUT -p icmpv6 --icmpv6-type router-advertisement -j ACCEPT")
# Add iptables/ip6tables commands to allow all incoming IPv4 DHCP packets
iptables_cmds.append("iptables -A INPUT -p udp --dport 67:68 --sport 67:68 -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p udp --dport 67:68 --sport 67:68 -j ACCEPT")
iptables_cmds.append("iptables -A INPUT -p udp --dport 67:68 -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p udp --dport 67:68 -j ACCEPT")
# Add iptables/ip6tables commands to allow all incoming IPv6 DHCP packets
iptables_cmds.append("iptables -A INPUT -p udp --dport 546:547 --sport 546:547 -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p udp --dport 546:547 --sport 546:547 -j ACCEPT")
iptables_cmds.append("iptables -A INPUT -p udp --dport 546:547 -j ACCEPT")
iptables_cmds.append("ip6tables -A INPUT -p udp --dport 546:547 -j ACCEPT")
# Add iptables/ip6tables commands to allow all incoming BGP traffic
# TODO: Determine BGP ACLs based on configured device sessions, and remove this blanket acceptance