Network problem with new VE3.2 Install

A

auser

Renowned Member
Jul 17, 2014
37
7
73
Hello everyone.
I have been using Proxmox VE 3.1 for over a year and it is GREAT!
So thanks to all the team. :-)

Now I have repurposed a known working HP server and installed VE 3.2

I can use the web interface, spice and ssh console.
But there is some problem with network configuration
From the CLI I can ping the default gateway. :-)

Code: 
root@proxmox:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.240.0   U     0      0        0 vmbr0
default         192.168.4.1     0.0.0.0         UG    0      0        0 vmbr0

root@proxmox:~# ping 192.168.4.1
PING 192.168.4.1 (192.168.4.1) 56(84) bytes of data.
64 bytes from 192.168.4.1: icmp_req=1 ttl=64 time=16.4 ms
64 bytes from 192.168.4.1: icmp_req=2 ttl=64 time=9.73 ms
^C
--- 192.168.4.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 9.731/13.110/16.489/3.379 ms
So I commented out the broken .deb configuration so that I could
run aptitude update and aptitude upgrade :-)

I copied in backups of 2 VMs and restored them, with no errors reported.

This server has 4 ethernet ports.
For now I am using only 1.

Code: 
root@proxmox:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:1b:78:57:24:ea  
          inet6 addr: fe80::21b:78ff:fe57:24ea/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:202091 errors:0 dropped:0 overruns:0 frame:0
          TX packets:354878 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:55978086 (53.3 MiB)  TX bytes:157477482 (150.1 MiB)
          Interrupt:17 Memory:fdfe0000-fe000000 

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:16436  Metric:1
          RX packets:1172521 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1172521 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:193337445 (184.3 MiB)  TX bytes:193337445 (184.3 MiB)

tap109i0  Link encap:Ethernet  HWaddr ae:07:1f:2e:ff:31  
          inet6 addr: fe80::ac07:1fff:fe2e:ff31/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:12220 errors:0 dropped:0 overruns:0 frame:0
          TX packets:32494 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:882150 (861.4 KiB)  TX bytes:24497049 (23.3 MiB)

tap109i1  Link encap:Ethernet  HWaddr 46:4e:7a:d8:dc:31  
          inet6 addr: fe80::444e:7aff:fed8:dc31/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:8780 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8559 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:474304 (463.1 KiB)  TX bytes:555707 (542.6 KiB)

tap110i0  Link encap:Ethernet  HWaddr d6:0f:6d:08:80:2f  
          inet6 addr: fe80::d40f:6dff:fe08:802f/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:852 errors:0 dropped:0 overruns:0 frame:0
          TX packets:19425 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:80393 (78.5 KiB)  TX bytes:1298170 (1.2 MiB)

tap110i1  Link encap:Ethernet  HWaddr b6:1a:72:80:db:8c  
          inet6 addr: fe80::b41a:72ff:fe80:db8c/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7914 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:1180 (1.1 KiB)  TX bytes:472594 (461.5 KiB)

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet6 addr: fe80::1/128 Scope:Link
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:3 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

vmbr0     Link encap:Ethernet  HWaddr 00:1b:78:57:24:ea  
          inet addr:192.168.4.222  Bcast:192.168.15.255  Mask:255.255.240.0
          inet6 addr: fe80::21b:78ff:fe57:24ea/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:148990 errors:0 dropped:0 overruns:0 frame:0
          TX packets:307342 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:17023486 (16.2 MiB)  TX bytes:154401272 (147.2 MiB)

The VMs IPs are not visible from the LAN. :-(

and nmap seems to be broken too. :-(

Code: 
root@proxmox:~# nmap 192.168.4.1

Starting Nmap 6.00 ( http://nmap.org ) at 2014-07-24 15:50 BST
route_dst_netlink: can't find interface "vmbr0"
root@proxmox:~# nmap -e vmbr0 192.168.4.1

Starting Nmap 6.00 ( http://nmap.org ) at 2014-07-24 15:54 BST
I cannot figure out what source address to use for device vmbr0, does it even exist?
QUITTING!
root@proxmox:~#

Can anyone help with this?

thankyou. :)
 
I see from my post that the MAC address of eth0 is _not_ a MAC address form any of the 4 ethernet ports.

Is this a problem?

Should the installer not have created eth0 using the first ethernet port tap109i0 and then created the bridge vmbr0 using that MAC adrress?

Code: 
root@proxmox:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:1b:78:57:24:ea  

tap109i0  Link encap:Ethernet  HWaddr ae:07:1f:2e:ff:31  

tap109i1  Link encap:Ethernet  HWaddr 46:4e:7a:d8:dc:31  

tap110i0  Link encap:Ethernet  HWaddr d6:0f:6d:08:80:2f  

tap110i1  Link encap:Ethernet  HWaddr b6:1a:72:80:db:8c  

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  

vmbr0     Link encap:Ethernet  HWaddr 00:1b:78:57:24:ea  
          inet addr:192.168.4.222  Bcast:192.168.15.255  Mask:255.255.240.0
          inet6 addr: fe80::21b:78ff:fe57:24ea/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:148990 errors:0 dropped:0 overruns:0 frame:0
          TX packets:307342 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:17023486 (16.2 MiB)  TX bytes:154401272 (147.2 MiB)
[/CODE]

I can however see from the above that vmbr0 has been TXing and RXing packets ok.
 
m.ardito said:
you should probably post your /etc/network/interfaces file

Marco
Click to expand...
Thanks marco.
will do so here.

Code: 
root@proxmox:~# cat /etc/network/interfaces 
auto lo
iface lo inet loopback

auto vmbr0
iface vmbr0 inet static
        address 192.168.4.222
        netmask 255.255.240.0
        gateway 192.168.4.1
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0
root@proxmox:~#
 
Update: VM issue solved - I can see the VM IP from the LAN now.

I cannot see a way for me to edit the title of this thread to 'nmap error'.

The nmap error is still there though.
 
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