[NETVIRT-9] L3 DVR sends local external subnet traffic to gateway Created: 22/Mar/16  Updated: 24/Oct/17

Status: Resolved
Project: netvirt
Component/s: General
Affects Version/s: Boron
Fix Version/s: None

Type: Bug
Reporter: Tim Rozet Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Operating System: All
Platform: All


External issue ID: 5586
Priority: High

 Description   

When sending traffic to the external subnet, the packet is always sent to the gateway. This is incorrect behavior. If there is a Gateway and host on the same external subnet, and a packet is sent to the host, the packet should not be forwarded to gateway:

External
GW-------------HOST

______DVR NAT--Internal Tenant Network--VM


 Comments   
Comment by Tim Rozet [ 19/Jan/17 ]

Still occurs with new netvirt.

Ping from 192.168.37.199 -> 192.168.37.200

3e:80:f3:396:45 - 192.168.37.199 br-external

#icmp request dest mac
fa:16:3e:07:b1:02 - 192.168.37.200 -FIP

#icmp reply source mac
00:40:47:c8:23:59 - 192.168.37.1 - GW

05:56:40.548550 3e:80:f3:396:45 (oui Unknown) > fa:16:3e:07:b1:02 (oui Unknown), ethertype IPv4 (0x0800), length 98: (tos 0x0, ttl 64, id 51433, offset 0, flags [DF], proto ICMP (1), length 84)
nfvsdn-05 > 192.168.37.200: ICMP echo request, id 50441, seq 67, length 64
05:56:40.549159 00:40:47:c8:23:59 (oui Unknown) > 3e:80:f3:396:45 (oui Unknown), ethertype IPv4 (0x0800), length 98: (tos 0x0, ttl 63, id 14762, offset 0, flags [none], proto ICMP (1), length 84)
192.168.37.200 > nfvsdn-05: ICMP echo reply, id 50441, seq 67, length 64

Comment by Sam Hague [ 03/Apr/17 ]

Tim, could you try the latest carbon build and verify this is fixed?

Comment by Tim Rozet [ 05/Apr/17 ]

(In reply to Sam Hague from comment #2)
> Tim, could you try the latest carbon build and verify this is fixed?

Yep will do.

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