August 30, 20178 yr I have been transitioning my dockers and servers over to a new vlan/network. All dockers/servers can get out to the internet just fine, but they cannot communicate with the Unraid host network. All gateways live on a layer 3 switch. Trunking is set up properly between the unraid host and switch. There are currently no ACLs restricting access between networks. 4 vlans: Vlan 3: 10.3.0.0/24 Management Vlan 33: 10.33.0.0/24 Data Vlan 66: 10.66.0.0/24 Guest Vlan 99: 10.99.0.0/24 Servers/Dockers default via 10.33.0.1 dev br0 metric 100 default via 10.3.0.1 dev br0.3 metric 110 default via 10.66.0.1 dev br0.66 metric 120 default via 10.99.0.1 dev br0.99 metric 130 10.3.0.0/24 dev br0.3 proto kernel scope link src 10.3.0.33 10.9.0.0/24 dev tun0 proto kernel scope link src 10.9.0.1 10.33.0.0/24 dev br0 proto kernel scope link src 10.33.0.33 10.66.0.0/24 dev br0.66 proto kernel scope link src 10.66.0.33 10.99.0.0/24 dev br0.99 proto kernel scope link src 10.99.0.33 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown docker network ls NETWORK ID NAME DRIVER SCOPE 6b3df8fc3284 br0 macvlan local 4141e5a41216 br0.3 macvlan local d39a8d8db5c2 br0.66 macvlan local cb92e1599c10 br0.99 macvlan local 00f45fae7a11 bridge bridge local f7b8213cd062 host host local 7d708d99278d none null local brctl show bridge name bridge id STP enabled interfaces br0 8000.fcaa1499b53c no bond0 br0.3 8000.fcaa1499b53c no bond0.3 br0.66 8000.fcaa1499b53c no bond0.66 br0.99 8000.fcaa1499b53c no bond0.99 docker0 8000.02424f573247 no veth484c2f1 vethaa05a75 virbr0 8000.52540065b66b yes virbr0-nic My dockers on the 10.99.0.0 network can communicate with the Internet and can ping the gateway of the 10.33.0.1/24 network, however I can't ping 10.33.0.33 the IP address of my Unraid host. Additionally, from my Unraid host, I can ping 10.99.0.1 but cannot ping anything else on the 10.99.0.1/24 network. I think it has something to do with the host routing/bridging. I think the 10.99.0.0 network may be able to reach the unraid host, but the host is then unable to route the traffic back properly. From Unraid host (10.33.0.33) traceroute 10.99.0.211 traceroute to 10.99.0.211 (10.99.0.211), 30 hops max, 60 byte packets 1 10.99.0.33 (10.99.0.33) 3053.222 ms !H 3053.185 ms !H 3053.173 ms !H From a docker: root@991a253e5b66:/$ ifconfig eth0 Link encap:Ethernet HWaddr 02:42:0A:63:00:D7 inet addr:10.99.0.215 Bcast:0.0.0.0 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:6602 errors:0 dropped:0 overruns:0 frame:0 TX packets:4374 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3021498 (2.8 MiB) TX bytes:653922 (638.5 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:252 errors:0 dropped:0 overruns:0 frame:0 TX packets:252 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:26131 (25.5 KiB) TX bytes:26131 (25.5 KiB) root@991a253e5b66:/$ traceroute 10.33.0.33 traceroute to 10.33.0.33 (10.33.0.33), 30 hops max, 46 byte packets 1 10.99.0.1 (10.99.0.1) 2.927 ms 0.484 ms 0.504 ms 2 * * * 3 * * *
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