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Pankaj Paliwal

vm system with agent state (-) none

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vm system with agent state (-) none

Hi community !

 

I use cloudstack 4.4 on centos with xenserver 6.2.

I created a advanced zone without security group. I have 3 nics :

- nics 1 for guest network and administration network.

- nics 2 for public network

- nics 3 for storage network.

 

I have a primary storage iscsi and my secondary storage locate on NFS server.

I followed installation instruction (vhd-utils, cloud-install-sys-tmplt ...)

 

When I working my zone, two vm created (secondary storage and console proxy) but agent state none (attach file 1)

 

I logged in Secondary Storage VM i try "ping 8.8.8.8" = ok but "ping www.google.fr" failed with DNS 8.8.8.8 of course.

 

When I created a advanced zone WITH security group. I don't have problems with System'vm. Agents of system'vm work normaly. I can download iso, template, to create VM ....

The only difference is to add the nic public network.

 

Where I can look for to help ?

 

Thanks for your help !

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Pankaj Paliwal
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vm system with agent state (-) none

Ok because of DNS, my two vm sytems don't start normaly, I think. 

 

When I create a zone Without public network (so with security group), my two vm system ping www.google.fr with same DNS server (8.8.8.8).

 

Thanks for your help !

 

Clément


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Pankaj Paliwal
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I retry to install cloudstack but in version 4.3 with public network and without security group and that work !

I can see agent state "UP". And on the System vm I can ping www.google.fr.

I don't understand  :huh:

 

But new problem now I haven't access to my vm (ping, ssh). Where is the firewall in cloudstack when i create a zone without security group. I can see security group in network section.

 

Thanks for your reply.

 

Clément.


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Pankaj Paliwal
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Hi !

 

My problem is understandable ?

 

In conclusion. I have a cloudstack UP but i haven't access at all VMs, when I make a zone WITHOUT security group (with security group no problem).

 

Thanks for your reply.  :)

 

Clément.


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Pankaj Paliwal
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a idea?

 

thanks a lot


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Pankaj Paliwal
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Hi,
 
I give you my different tests, the first problem I can't ping system vm (internal nic and external nic) since same network (since computing node for exemple).
 
I can ping a host from internal nic (10.254.50.0/24) since system vm.
 
IP address of computing node 10.254.50.45
IP address of console proxy vm 10.254.50.209
 
 
On console proxy VM : 
 
root@v-2-VM:~# route -n
Kernel IP routing table
Destination           Gateway                 Genmask                Flags    Metric Ref    Use Iface
0.0.0.0                  37.122.XXX.XX        0.0.0.0                    UG       0      0        0 eth2
8.8.8.8                  10.254.50.254        255.255.255.255    UGH     0      0        0 eth1
10.254.50.0           0.0.0.0                   255.255.255.0        U          0      0        0 eth1
37.122.XXX.XXX     0.0.0.0                   255.255.255.XXX    U          0      0        0 eth2
169.254.0.0           0.0.0.0                   255.255.0.0            U          0      0        0 eth0
 
I can ping www.google.fr, my two gateway and host for test: 
 
root@v-2-VM:~# ping -c2 www.google.fr
PING www.google.fr (173.194.66.94): 48 data bytes
56 bytes from 173.194.66.94: icmp_seq=0 ttl=48 time=5.989 ms
56 bytes from 173.194.66.94: icmp_seq=1 ttl=48 time=5.959 ms
--- www.google.fr ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 5.959/5.974/5.989/0.000 ms
 
root@v-2-VM:~# ping -c2 10.254.50.254
PING 10.254.50.254 (10.254.50.254): 48 data bytes
56 bytes from 10.254.50.254: icmp_seq=0 ttl=64 time=0.250 ms
56 bytes from 10.254.50.254: icmp_seq=1 ttl=64 time=0.251 ms
--- 10.254.50.254 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.250/0.251/0.251/0.000 ms
 
root@v-2-VM:~# ping -c2 37.122.XXX.XXX
PING 37.122.XXX.XXX (37.122.XXX.XXX): 48 data bytes
56 bytes from 37.122.XXX.XXX: icmp_seq=0 ttl=64 time=0.284 ms
56 bytes from 37.122.XXX.XXX: icmp_seq=1 ttl=64 time=0.173 ms
--- 37.122.XXX.XXX ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.173/0.228/0.284/0.056 ms
 
root@v-2-VM:~# ping -c2 10.254.50.45
PING 10.254.50.123 (10.254.50.123): 48 data bytes
56 bytes from 10.254.50.123: icmp_seq=0 ttl=128 time=1.468 ms
56 bytes from 10.254.50.123: icmp_seq=1 ttl=128 time=0.345 ms
--- 10.254.50.123 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.345/0.906/1.468/0.562 ms
 
From my computing node I can ping gateway but not system vm :
 
root@ubuntu:/# ping -c2 10.254.50.254
PING 10.254.50.254 (10.254.50.254) 56(84) bytes of data.
64 bytes from 10.254.50.254: icmp_req=1 ttl=64 time=1.14 ms
64 bytes from 10.254.50.254: icmp_req=2 ttl=64 time=0.238 ms
 
--- 10.254.50.254 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.238/0.691/1.145/0.454 ms
 
root@ubuntu:/# ping -c2 10.254.50.209
PING 10.254.50.209 (10.254.50.209) 56(84) bytes of data.
 
--- 10.254.50.209 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1000ms
 
With the following command : tcpdump -vv -i eth1
 

 

 

16:05:14.378905 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.254.50.209 tell 10.254.50.45, length 46
16:05:15.377608 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.254.50.209 tell 10.254.50.45, length 46
16:05:16.377600 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.254.50.209 tell 10.254.50.45, length 46
16:05:17.395947 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.254.50.209 tell 10.254.50.45, length 46
16:05:18.393719 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.254.50.209 tell 10.254.50.45, length 46
16:05:18.828127 IP (tos 0x0, ttl 64, id 30676, offset 0, flags [DF], proto TCP (6), length 56)
    10.254.50.201.58036 > 10.254.50.45.8250: Flags [P.], cksum 0x7b1c (incorrect -> 0xdd06), seq 3973496:3973500, ack 1507845368, win 2641, options [nop,nop,TS val 826858 ecr 954898], length 4

 seq 3973496:3973500, ack 1507845368, win 

eq 1:5, ack 217, win 331, options [nop,nop,TS val 956151 ecr 826868], length 4
16:05:18.883024 IP (tos 0x0, ttl 64, id 30678, offset 0, flags [DF], proto TCP (6), length 52)

 

 

 

 
I see paquets come on my console proxy  :mellow:
 
I didn't touch iptables rules
 
There is a firewall hidden ? 
 

 


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Pankaj Paliwal
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Here my firewall rules by default on console proxy :

 

Chain INPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
DROP       icmp --  anywhere             anywhere             icmp timestamp-request
ACCEPT     icmp --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:3922
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:8001
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:8001
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:https
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:http
 
Chain FORWARD (policy DROP)
target     prot opt source               destination         
 
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination  

 

 

 

Thanks for your reply,

 

Clément


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