Hi,
I’ve been trying to get DevStack working to the point that I could use it to explore CloudFoundry ( http://docs.cloudfoundry.org/deploying/openstack/validate_openstack.html). I keep getting stuck with networking glitches. Sometimes it works, but most of the time it doesn’t. Hopefully you can help. This is how I’m running DevStack: http://software.danielwatrous.com/openstack-development-using-devstack/ When I boot my server fresh, the networking interfaces are as shown in the first block below. The second block below that shows what they look like after running stack.sh and starting the first guest VM. The IP address disappears for eth0, but I don’t lose any SSH connections that are currently live against that interface. When I log in to the instance I can't access the outside internet. I have tried iptables changes (sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE). I have tried updating /proc/sys/net/ipv4/ip_forward. I can ping the host, the gateway and the main IP address, including the one that supposedly no longer exists. Any help appreciated. ****************************************************** **** Fresh boot Ubuntu 14.04 LTS x64 * **** Two network ports, DHCP obtained IP addresses * **** Behind a proxy * ****************************************************** watrous@watrous-helion:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:1e:c9:b2:40:b3 inet addr:16.85.145.3 Bcast:16.85.147.255 Mask:255.255.252.0 inet6 addr: fe80::21e:c9ff:feb2:40b3/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:277 errors:0 dropped:0 overruns:0 frame:0 TX packets:149 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:29446 (29.4 KB) TX bytes:24038 (24.0 KB) eth1 Link encap:Ethernet HWaddr 00:1e:c9:b2:40:b5 inet addr:16.85.145.6 Bcast:16.85.147.255 Mask:255.255.252.0 inet6 addr: fe80::21e:c9ff:feb2:40b5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:177 errors:0 dropped:0 overruns:0 frame:0 TX packets:10 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:15657 (15.6 KB) TX bytes:1372 (1.3 KB) 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:65536 Metric:1 RX packets:128 errors:0 dropped:0 overruns:0 frame:0 TX packets:128 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7930 (7.9 KB) TX bytes:7930 (7.9 KB) virbr0 Link encap:Ethernet HWaddr 66:0f:58:21:8d:7f inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) watrous@watrous-helion:~$ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:c9:b2:40:b3 brd ff:ff:ff:ff:ff:ff inet 16.85.145.3/22 brd 16.85.147.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::21e:c9ff:feb2:40b3/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:c9:b2:40:b5 brd ff:ff:ff:ff:ff:ff inet 16.85.145.6/22 brd 16.85.147.255 scope global eth1 valid_lft forever preferred_lft forever inet6 fe80::21e:c9ff:feb2:40b5/64 scope link valid_lft forever preferred_lft forever 4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default link/ether 66:0f:58:21:8d:7f brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever watrous@watrous-helion:~$ ip route default via 16.85.144.1 dev eth0 16.85.144.0/22 dev eth0 proto kernel scope link src 16.85.145.3 16.85.144.0/22 dev eth1 proto kernel scope link src 16.85.145.6 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 watrous@watrous-helion:~$ sudo iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination ************************************************** ****** After stack.sh and create a new VM ****** ************************************************** watrous@watrous-helion:~$ ifconfig br100 Link encap:Ethernet HWaddr 00:1e:c9:b2:40:b3 inet addr:10.11.12.1 Bcast:10.11.12.255 Mask:255.255.255.0 inet6 addr: fe80::60ab:b0ff:fe26:9fd/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:887 errors:0 dropped:23 overruns:0 frame:0 TX packets:23 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:292811 (292.8 KB) TX bytes:2367 (2.3 KB) eth0 Link encap:Ethernet HWaddr 00:1e:c9:b2:40:b3 inet6 addr: fe80::21e:c9ff:feb2:40b3/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:669986 errors:0 dropped:4 overruns:0 frame:0 TX packets:588283 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:597137467 (597.1 MB) TX bytes:593935543 (593.9 MB) eth1 Link encap:Ethernet HWaddr 00:1e:c9:b2:40:b5 inet addr:16.85.145.6 Bcast:16.85.147.255 Mask:255.255.252.0 inet6 addr: fe80::21e:c9ff:feb2:40b5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:354520 errors:0 dropped:0 overruns:0 frame:0 TX packets:285578 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:313844137 (313.8 MB) TX bytes:307237034 (307.2 MB) 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:65536 Metric:1 RX packets:60309 errors:0 dropped:0 overruns:0 frame:0 TX packets:60309 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:20401825 (20.4 MB) TX bytes:20401825 (20.4 MB) virbr0 Link encap:Ethernet HWaddr 66:0f:58:21:8d:7f inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) vnet0 Link encap:Ethernet HWaddr fe:16:3e:f6:f9:b8 inet6 addr: fe80::fc16:3eff:fef6:f9b8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:31 errors:0 dropped:0 overruns:0 frame:0 TX packets:188 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:3004 (3.0 KB) TX bytes:18215 (18.2 KB) watrous@watrous-helion:~$ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 169.254.169.254/32 scope link lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br100 state UP group default qlen 1000 link/ether 00:1e:c9:b2:40:b3 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:c9ff:feb2:40b3/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:c9:b2:40:b5 brd ff:ff:ff:ff:ff:ff inet 16.85.145.6/22 brd 16.85.147.255 scope global eth1 valid_lft forever preferred_lft forever inet6 fe80::21e:c9ff:feb2:40b5/64 scope link valid_lft forever preferred_lft forever 4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default link/ether 66:0f:58:21:8d:7f brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever 5: br100: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 00:1e:c9:b2:40:b3 brd ff:ff:ff:ff:ff:ff inet 10.11.12.1/24 brd 10.11.12.255 scope global br100 valid_lft forever preferred_lft forever inet 16.85.145.3/22 brd 16.85.147.255 scope global br100 valid_lft forever preferred_lft forever inet6 fe80::60ab:b0ff:fe26:9fd/64 scope link valid_lft forever preferred_lft forever 6: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br100 state UNKNOWN group default qlen 500 link/ether fe:16:3e:f6:f9:b8 brd ff:ff:ff:ff:ff:ff inet6 fe80::fc16:3eff:fef6:f9b8/64 scope link valid_lft forever preferred_lft forever watrous@watrous-helion:~$ ip route default via 16.85.144.1 dev eth1 10.11.12.0/24 dev br100 proto kernel scope link src 10.11.12.1 16.85.144.0/22 dev eth1 proto kernel scope link src 16.85.145.6 16.85.144.0/22 dev br100 proto kernel scope link src 16.85.145.3 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 watrous@watrous-helion:~$ sudo iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination nova-compute-INPUT all -- anywhere anywhere nova-network-INPUT all -- anywhere anywhere nova-api-INPUT all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination nova-filter-top all -- anywhere anywhere nova-compute-FORWARD all -- anywhere anywhere nova-network-FORWARD all -- anywhere anywhere nova-api-FORWARD all -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination nova-filter-top all -- anywhere anywhere nova-compute-OUTPUT all -- anywhere anywhere nova-network-OUTPUT all -- anywhere anywhere nova-api-OUTPUT all -- anywhere anywhere Chain nova-api-FORWARD (1 references) target prot opt source destination Chain nova-api-INPUT (1 references) target prot opt source destination ACCEPT tcp -- anywhere watrous-helion.americas.hpqcorp.net tcp dpt:8775 Chain nova-api-OUTPUT (1 references) target prot opt source destination Chain nova-api-local (1 references) target prot opt source destination Chain nova-compute-FORWARD (1 references) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere ACCEPT udp -- 0.0.0.0 255.255.255.255 udp spt:bootpc dpt:bootps Chain nova-compute-INPUT (1 references) target prot opt source destination ACCEPT udp -- 0.0.0.0 255.255.255.255 udp spt:bootpc dpt:bootps Chain nova-compute-OUTPUT (1 references) target prot opt source destination Chain nova-compute-inst-2 (1 references) target prot opt source destination DROP all -- anywhere anywhere state INVALID ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED nova-compute-provider all -- anywhere anywhere ACCEPT udp -- 10.11.12.1 anywhere udp spt:bootps dpt:bootpc ACCEPT all -- 10.11.12.0/24 anywhere nova-compute-sg-fallback all -- anywhere anywhere Chain nova-compute-local (1 references) target prot opt source destination nova-compute-inst-2 all -- anywhere 10.11.12.3 Chain nova-compute-provider (1 references) target prot opt source destination Chain nova-compute-sg-fallback (1 references) target prot opt source destination DROP all -- anywhere anywhere Chain nova-filter-top (2 references) target prot opt source destination nova-compute-local all -- anywhere anywhere nova-network-local all -- anywhere anywhere nova-api-local all -- anywhere anywhere Chain nova-network-FORWARD (1 references) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere Chain nova-network-INPUT (1 references) target prot opt source destination ACCEPT udp -- anywhere anywhere udp dpt:bootps ACCEPT tcp -- anywhere anywhere tcp dpt:bootps ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain Chain nova-network-OUTPUT (1 references) target prot opt source destination Chain nova-network-local (1 references) target prot opt source destination
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