I have a Nova setup with which when I spin up an instance I can't ping or log into the instance off node through a VLAN. The switch has tagged VLANs set up, and I can create and use VLANs from one physical node to another and communicate through them. I've created and setup the network '172.17.87.0/24 1 256'. I've done the modifications in the database to the networks and fixed_ips tables, IPs 172.17.87.1 thru 172.17.87.7 are reserved, 172.17.87.7 is the gateway. I've changed the 'vlan' to 6 and the bridge to br_6.

My nova.conf file is: --dhcpbridge_flagfile=/etc/nova/nova.conf --dhcpbridge=/usr/bin/nova-dhcpbridge --logdir=/var/log/nova --lock_path=/var/lock/nova --state_path=/var/lib/nova --verbose --use_deprecated_auth --vlan_interface=eth3 --public_interface=eth3 --s3_host=172.17.86.7 --rabbit_host=172.17.86.7 --ec2_api=172.17.86.7 --ec2_url=http://172.17.86.7:8773/services/Cloud --routing_source_ip=172.17.86.7 --fixed_range=172.17.87.0/24 --network_size=1 --sql_connection=mysql://root:nova@172.17.86.7/nova

ifconfig shows: br100 Link encap:Ethernet HWaddr 1c:c1:de:f0:02:8d
inet addr:172.17.86.7 Bcast:172.17.95.255 Mask:255.255.240.0 inet6 addr: fe80::1ec1:deff:fef0:28d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15091 errors:0 dropped:0 overruns:0 frame:0 TX packets:2444 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:831322 (831.3 KB) TX bytes:361780 (361.7 KB)

br_6 Link encap:Ethernet HWaddr 02:16:3e:02:8f:90
inet addr:172.17.87.7 Bcast:172.17.87.255 Mask:255.255.255.0 inet6 addr: fe80::16:3eff:fe02:8f90/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:334 errors:0 dropped:0 overruns:0 frame:0 TX packets:360 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:41946 (41.9 KB) TX bytes:50283 (50.2 KB)

eth3 Link encap:Ethernet HWaddr 1c:c1:de:f0:02:8d
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:18477 errors:0 dropped:187 overruns:0 frame:0 TX packets:2570 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1341772 (1.3 MB) TX bytes:369796 (369.7 KB) Memory:f5fe0000-f6000000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:319156 errors:0 dropped:0 overruns:0 frame:0 TX packets:319156 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3415153974 (3.4 GB) TX bytes:3415153974 (3.4 GB)

virbr0 Link encap:Ethernet HWaddr 06:ad:39:32:60:70
inet addr:192.168.122.1 Bcast ...
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