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- root@M14EBR:~# iptables-save
- # Generated by xtables-save v1.8.2 on Wed Feb 20 12:57:49 2019
- *filter
- :INPUT ACCEPT [0:0]
- :FORWARD ACCEPT [0:0]
- :OUTPUT ACCEPT [0:0]
- -A INPUT -i virbr0 -p udp -m udp --dport 53 -j ACCEPT
- -A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
- -A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT
- -A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT
- -A FORWARD -d 192.168.122.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
- -A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT
- -A FORWARD -i virbr0 -o virbr0 -j ACCEPT
- -A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable
- -A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable
- -A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable
- -A OUTPUT -o virbr0 -p udp -m udp --dport 68 -j ACCEPT
- COMMIT
- # Completed on Wed Feb 20 12:57:49 2019
- # Generated by xtables-save v1.8.2 on Wed Feb 20 12:57:49 2019
- *nat
- :PREROUTING ACCEPT [0:0]
- :INPUT ACCEPT [0:0]
- :POSTROUTING ACCEPT [0:0]
- :OUTPUT ACCEPT [0:0]
- -A POSTROUTING -s 192.168.122.0/24 -d 224.0.0.0/24 -j RETURN
- -A POSTROUTING -s 192.168.122.0/24 -d 255.255.255.255/32 -j RETURN
- -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
- -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
- -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE
- COMMIT
- # Completed on Wed Feb 20 12:57:49 2019
- # Generated by xtables-save v1.8.2 on Wed Feb 20 12:57:49 2019
- *mangle
- :PREROUTING ACCEPT [0:0]
- :INPUT ACCEPT [0:0]
- :FORWARD ACCEPT [0:0]
- :OUTPUT ACCEPT [0:0]
- :POSTROUTING ACCEPT [0:0]
- -A POSTROUTING -o virbr0 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
- COMMIT
- # Completed on Wed Feb 20 12:57:49 2019
- # Warning: iptables-legacy tables present, use iptables-legacy-save to see them
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