Hello,
It might happen if you have basic zone setup. We have implemented such
configuration with XenServer, but it is confusable indeed. It is better to have
differen LAN-s (VLANs) and partition the network properly. External L2/L3
switch is also a requirement.
Vadim.
-----Original Message-----
From: Dan Dong [mailto:[email protected]]
Sent: Wednesday, November 12, 2014 1:24 AM
To: [email protected]
Subject: Re: Confusable default routing table on SSVM.
Hi, All,
Can experts examine the settings above if they are problematic? Could
Management Server, KVM host and VMs all sit in the same 192.168.0.0/24 network?
I checked a lot but have no idea, all firewalls have been turned off but still
the SSVM could not contact Management server and the outside.
Thanks a lot!
Cheers,
Dan
2014-11-11 10:29 GMT-06:00 Dan Dong <[email protected]>:
> Hi, All,
> When debugging why my SSVM could not access outside, I see the
> following route table on SSVM:
> root@s-1-VM:~# ip route show
> 169.254.0.0/16 dev eth0 proto kernel scope link src 169.254.1.47
> 192.168.0.0/24 dev eth1 proto kernel scope link src 192.168.0.22
> 192.168.0.0/24 dev eth2 proto kernel scope link src 192.168.0.134
> 192.168.0.0/24 dev eth3 proto kernel scope link src 192.168.0.25
>
> There are 3 rules to reach the same subnet of 192.168.0.0/24 through
> different NICs.
> The problem is that SSVM could not ping both the KVM
> host(192.168.0.101) on which the SSVM is running and the Management
> Server(192.168.0.100, it is also set to be the gateway of the
> 192.168.0.0/24 network), although they are all on the same subnet. I
> suspect it is the bridge setings of the KVM, but no clues yet. Any hints?
>
> root@comp11:/etc# cat /etc/network/interfaces # This file describes
> the network interfaces available on your system # and how to activate
> them. For more information, see interfaces(5).
>
> # The loopback network interface
> auto lo
> iface lo inet loopback
>
> # The primary network interface
> auto em1
> iface em1 inet static
> address 192.168.0.101
> netmask 255.255.255.0
> network 192.168.0.0
> broadcast 192.168.0.255
> gateway 192.168.0.100
> dns-nameservers 192.168.0.100
>
> #=============CloudStack Network Bridges============ # Public network
> auto cloudbr0 iface cloudbr0 inet manual
> bridge_ports em1.200
> bridge_fd 5
> bridge_stp off
> bridge_maxwait 1
>
> # Private network
> auto cloudbr1
> iface cloudbr1 inet manual
> bridge_ports em1.300
> bridge_fd 5
> bridge_stp off
> bridge_maxwait 1
>
>
> Cheers,
> Dan
>
