[one-users] Not able to ping running VM from outside network
Errol Samuels
esamuels at carismatel.com
Fri Nov 25 08:45:14 PST 2011
I am also using the Sunstone interface but creating the vm from the
command line.
I don't quite understand where the Opennebula is picking up the network
info (Bcast and Mask) from.
On 25/11/2011 16:36, Zeeshan Ali Shah wrote:
> and what is the route of vm ?
Sorry, I forgot to include the route for the vm in my last email.
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
1.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0
# ifconfig
eth0 Link encap:Ethernet HWaddr 02:00:41:62:4A:93
inet addr:1.1.74.147 Bcast:65.255.255.255 Mask:255.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:63 errors:0 dropped:0 overruns:0 frame:0
TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8153 (7.9 KiB) TX bytes:5779 (5.6 KiB)
Interrupt:11 Base address:0xc100
regards,
Errol
>
> On Fri, Nov 25, 2011 at 5:10 PM, Errol Samuels
> <esamuels at carismatel.com <mailto:esamuels at carismatel.com>> wrote:
>
> Hello,
>
> OK here it goes:
>
> *Route Print from Opennebula Control Server:*
>
> root at cps:/srv/cloud/one/one-templates# route -n
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric
> Ref Use Iface
> 1.1.75.192 0.0.0.0 255.255.255.248 U 0
> 0 0 eth0
> 172.22.55.0 0.0.0.0 255.255.255.0 U 0
> 0 0 eth1
> 0.0.0.0 1.1.75.193 0.0.0.0 UG 100
> 0 0 eth0
>
> root at cps:/srv/cloud/one/one-templates# ping -c 5 1.1.74.147
>
> PING 1.1.74.147 (1.1.74.147) 56(84) bytes of data.
> 64 bytes from 1.1.74.147 <http://1.1.74.147>: icmp_req=1 ttl=64
> time=1.65 ms
> 64 bytes from 1.1.74.147 <http://1.1.74.147>: icmp_req=2 ttl=64
> time=0.366 ms
> 64 bytes from 1.1.74.147 <http://1.1.74.147>: icmp_req=3 ttl=64
> time=0.405 ms
> 64 bytes from 1.1.74.147 <http://1.1.74.147>: icmp_req=4 ttl=64
> time=0.400 ms
> 64 bytes from 1.1.74.147 <http://1.1.74.147>: icmp_req=5 ttl=64
> time=0.426 ms
>
> --- 1.1.74.147 ping statistics ---
>
> *Route Print from KVM hypervisor:*
>
> root at vmh:~# route -n
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric
> Ref Use Iface
> 0.0.0.0 1.1.74.145 0.0.0.0 UG 100
> 0 0 virbr0
> 1.1.74.144 0.0.0.0 255.255.255.248 U 0
> 0 0 virbr0
> 172.22.55.0 0.0.0.0 255.255.255.0 U 0
> 0 0 virbr1
>
> *From my iMAC*
>
> I am able to ping both the Control Server (1.1.75.194) and the KVM
> Host (1.1.74.146) but not the VM (1.1.74.147).
>
>
> *This is my "Red LAN NJ01" configuration:*
>
> NAME = "Red LAN NJ01 "
> TYPE = FIXED
>
> # We have to bind this network to 'virbr0' for Internet Access
> BRIDGE = virbr0
>
> LEASES = [ IP="1.1.74.147"]
> LEASES = [ IP="1.1.74.148"]
> LEASES = [ IP="1.1.74.149"]
> LEASES = [ IP="1.1.74.150"]
>
> GATEWAY = 1.1.74.145
> DNS = 208.67.222.222
>
> *This is my ttylinux.one configuration:*
>
>
> NAME = ttylinux
> CPU = 0.1
> MEMORY = 64
>
> DISK = [ IMAGE_ID = 2 ]
>
> NIC = [ NETWORK_ID = 13 ]
>
>
> FEATURES=[ acpi="no" ]
>
> CONTEXT = [
> hostname = "$NAME",
> ip_public = "1.1.74.147",
> files = "/srv/cloud/one/one-templates/init.sh
> /srv/cloud/one/.ssh/id_rsa.pub",
> target = "hdc",
> root_pubkey = "id_rsa.pub",
> username = "oneadmin",
> user_pubkey = "id_rsa.pub"
> ]
>
> Interestly, I did an ifconfig in the VM and I see the the
> Broadcast and the Netmask are incorrect.
>
> # ifconfig
> eth0 Link encap:Ethernet HWaddr 02:00:41:62:4A:93
> inet addr:1.1.74.147 Bcast:1.255.255.255 Mask:255.0.0.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:257 errors:0 dropped:0 overruns:0 frame:0
> TX packets:124 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:25210 (24.6 KiB) TX bytes:14670 (14.3 KiB)
> Interrupt:11 Base address:0xc100
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:8 errors:0 dropped:0 overruns:0 frame:0
> TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:592 (592.0 B) TX bytes:592 (592.0 B)
>
> So it looks like a virtual network configuration issue somewhere
> but I can't put my hand on it.
>
> Best regards,
>
> Errol
>
>
> On 25/11/2011 15:08, Zeeshan Ali Shah wrote:
>> what does route -n on both machine where you can ping and from
>> where you cannot show ...
>>
>> On Fri, Nov 25, 2011 at 3:42 PM, Errol Samuels
>> <esamuels at carismatel.com <mailto:esamuels at carismatel.com>> wrote:
>>
>> Hello,
>>
>> I am trying to get the test ttylinux VM going after a few
>> days of putting together bits of documentation to get a
>> better understanding of KVM. So far the VM is running and I
>> am able to ssh into it from the Control Server and the Host
>> but I am unable to ping it from any other external IP.
>>
>> I checked the relevant FAQ:
>> "http://wiki.opennebula.org/faq#my_vm_is_running_but_i_get_no_answer_from_pings_what_s_wrong"
>> <http://wiki.opennebula.org/faq#my_vm_is_running_but_i_get_no_answer_from_pings_what_s_wrong>
>> and made some comments below.
>>
>>> There are several reasons for this, check:
>>>
>>> *
>>> You have created a network with a valid bridge in the
>>> nodes of your cluster
>>>
>>
>> Yes, the bridge configuration is as follows:
>>
>> ** ( Real IP has been substituted ) **
>>
>> auto eth0
>> iface eth0 inet manual
>> auto virbr0
>> iface virbr0 inet static
>> address 1.1.74.146
>> netmask 255.255.255.248
>> network 1.1.74.144
>> gateway 1.1.74.145
>> broadcast 1.1.74.151
>> bridge_ports eth0
>> bridge_fd 9
>> bridge_hello 2
>> bridge_maxage 12
>> bridge_stp off
>>
>>> *
>>> You have defined a NIC attribute in your VM attached to
>>> that network
>>>
>>
>> NAME = ttylinux
>> CPU = 0.1
>> MEMORY = 64
>>
>> DISK = [ IMAGE_ID = 2 ]
>>
>> NIC = [ NETWORK_ID = 10 ]
>>
>> FEATURES=[ acpi="no" ]
>>
>> CONTEXT = [
>> hostname = "$NAME",
>> ip_public = "1.1.74.147",
>> files = "/srv/cloud/one/one-templates/init.sh
>> /srv/cloud/one/.ssh/id_rsa.pub",
>> target = "hdc",
>> root_pubkey = "id_rsa.pub",
>> username = "oneadmin",
>> user_pubkey = "id_rsa.pub"
>> ]
>>
>>> *
>>> The VM is prepared to configure the interface to use a
>>> valid IP in that network. You can:
>>> o
>>> Configure the VM to dynamically configure the IP
>>> using its MAC address (Contextualzation
>>> <http://wiki.opennebula.org/documentation:rel2.2:cong>)
>>> o
>>> Configure the VM to statically set a given IP of the
>>> network
>>> o
>>> Put a DHCP server attached to that network
>>>
>>
>> Yes, the VM is statically set a given IP of the network.
>>
>>> *
>>> Also be sure that you are pinging the VM from a host
>>> with a route to the network
>>>
>>
>> Yes, I am able to ping and ssh the VM from the Control Server
>> which is on the same public VLAN but I am unable to ping that
>> IP from my network for example.
>>
>>
>> oneadmin at cps:~/one-templates$ onevnet list
>> ID USER GROUP NAME TYPE BRIDGE PUB LEASES
>> 10 oneadmin oneadmin Red LAN NJ01 F virbr0 No 1
>> 5 oneadmin oneadmin Blue LAN R virbr1
>> No 0
>>
>>
>> oneadmin at cps:~/one-templates$ onevm list
>> ID USER GROUP NAME STAT CPU MEM
>> HOSTNAME TIME
>> 13 oneadmin oneadmin ttylinux runn 4 64M
>> vmh-usnjewr-eqi 00 01:09:54
>>
>> Opennebula Version = 3.0.0 compiled from source
>> Installation Type = Self contained in /srv/cloud/one
>> Hypervisor = KVM
>> Control Server OS: Ubuntu 11.04 LTS
>> KVM Host OS: Ubuntu 11.10 LTS
>> Storage = Non Shared File System
>>
>> Any assistance will be much appreciated.
>>
>> Thanks in Advance.
>>
>> Errol
>>
>>
>>
>>
>>
>>
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>>
>>
>>
>>
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