I got running Hyper-V compute node and a Controller/Network node on a separate linux server. This configurations working well on KVM compute nodes (which I remove all networks, disable kvm compute nodes prior to testing this)
As per testing, i used to upload a Centos 6.5 image. I made 2 instances, 1 VM directly connected to the external network (aka public network) and 1 VM connected to the private network which routed to the external network.
But my questions now why directly connecting to the external network doesn't work or not able to ping the NIC connected to the external router (10.20.30.254)?
ip netns
qrouter-94683fda-8425-44e4-a3b9-011146d3db3c
qdhcp-40c419d7-9b49-4566-a5b6-c01dc270dbdf
qdhcp-8971a629-8326-466a-979a-c39401245043
IPs are the following (remove lo):
ip netns exec qdhcp-40c419d7-9b49-4566-a5b6-c01dc270dbdf ifconfig
tap84ddb98a-6f: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 10.0.1.2 netmask 255.255.255.0 broadcast 10.0.1.255
inet6 fe80::f816:3eff:fe6e:60a1 prefixlen 64 scopeid 0x20<link>
ether fa:16:3e:6e:60:a1 txqueuelen 0 (Ethernet)
RX packets 585 bytes 29880 (29.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 32 bytes 4761 (4.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
and this is directly connected external network
ip netns exec qdhcp-8971a629-8326-466a-979a-c39401245043 ifconfig
tap344a41fd-c9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet 10.20.30.20 netmask 255.255.255.0 broadcast 10.20.30.255
inet6 fe80::f816:3eff:fef4:7072 prefixlen 64 scopeid 0x20<link>
ether fa:16:3e:f4:70:72 txqueuelen 0 (Ethernet)
RX packets 1342 bytes 67134 (65.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 138 bytes 12426 (12.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Gateways:
ip netns exec qdhcp-8971a629-8326-466a-979a-c39401245043 route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.20.30.254 0.0.0.0 UG 0 0 0 tap344a41fd-c9
10.20.30.0 0.0.0.0 255.255.255.0 U 0 0 0 tap344a41fd-c9
ip netns exec qdhcp-40c419d7-9b49-4566-a5b6-c01dc270dbdf route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.1.1 0.0.0.0 UG 0 0 0 tap84ddb98a-6f
10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 tap84ddb98a-6f
Pinging the main gateway (10.20.30.254).
ip netns exec qdhcp-8971a629-8326-466a-979a-c39401245043 ping 10.20.30.254
PING 10.20.30.254 (10.20.30.254) 56(84) bytes of data.
From 10.20.30.20 icmp_seq=1 Destination Host Unreachable
From 10.20.30.20 icmp_seq=2 Destination Host Unreachable
ip netns exec qdhcp-40c419d7-9b49-4566-a5b6-c01dc270dbdf ping 10.20.30.254
PING 10.20.30.254 (10.20.30.254) 56(84) bytes of data.
64 bytes from 10.20.30.254: icmp_seq=1 ttl=127 time=5.77 ms
^C
--- 10.20.30.254 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 5.778/5.778/5.778/0.000 ms
ip netns exec qdhcp-40c419d7-9b49-4566-a5b6-c01dc270dbdf ping redhat.com PING redhat.com (209.132.183.105) 56(84) bytes of data. 64 bytes from redirect.redhat.com (209.132.183.105): icmp_seq=1 ttl=232 time=148 ms ^C
--- redhat.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev =
148.038/148.038/148.038/0.000 ms
Hope someone give insights.
I don't know if this related to this question.
