Pavan Kumar Bandarupally created CLOUDSTACK-8925:
----------------------------------------------------

             Summary: Default allow for Egress rules is not being configured 
properly in VR iptables rules
                 Key: CLOUDSTACK-8925
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8925
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Virtual Router
    Affects Versions: 4.6.0
            Reporter: Pavan Kumar Bandarupally
            Priority: Critical
             Fix For: 4.6.0



When we create a network with Egress rules set to default allow, the rules 
created in FW_OUTBOUND table should have a reference to FW_EGRESS_RULES chain 
which has a rule to accept NEW packets from the guest instances. Without that 
rule only RELATED , ESTABLISHED rule in FW_OUTBOUND chain will result in Drop 
of packets.


Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
   44  2832 NETWORK_STATS  all  --  *      *       0.0.0.0/0            
0.0.0.0/0
    0     0 ACCEPT     all  --  eth0   eth1    0.0.0.0/0            0.0.0.0/0   
         state RELATED,ESTABLISHED
    0     0 ACCEPT     all  --  eth0   eth0    0.0.0.0/0            0.0.0.0/0   
         state NEW
    4   336 ACCEPT     all  --  eth2   eth0    0.0.0.0/0            0.0.0.0/0   
         state RELATED,ESTABLISHED
    0     0 ACCEPT     all  --  eth0   eth0    0.0.0.0/0            0.0.0.0/0   
         state RELATED,ESTABLISHED
   40  2496 FW_OUTBOUND  all  --  eth0   eth2    0.0.0.0/0            0.0.0.0/0

Chain OUTPUT (policy ACCEPT 20 packets, 1888 bytes)
 pkts bytes target     prot opt in     out     source               destination
 2498  369K NETWORK_STATS  all  --  *      *       0.0.0.0/0            
0.0.0.0/0

Chain FIREWALL_EGRESS_RULES (0 references)
 pkts bytes target     prot opt in     out     source               destination

Chain FW_OUTBOUND (1 references)
 pkts bytes target     prot opt in     out     source               destination
    3   252 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0   
         state RELATED,ESTABLISHED





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