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kamal2222ahmed
Contributor
Contributor

Cannot access internet from Guest VM (ubuntu 10.10) on ESXi 4.1

/etc/resolv.conf 

nameserver 10.0.11.1
domain a.b
search a.b
-----------
route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.0.11.0       *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     1000   0        0 eth0
default         10.0.11.1       0.0.0.0         UG    100    0        0 eth0
-----------------------
ESXi IP = 10.0.11.11
--------------------------
on Client VM:
ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:0c:29:d6:b4:ca 
          inet addr:10.0.11.12  Bcast:10.0.11.255  Mask:255.255.255.0
----------------------------------
/etc/network# more interfaces
auto lo
iface lo inet loopback
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
    address 10.0.11.12
    gateway 10.0.11.1
    netmask 255.255.255.0
    network 10.0.11.0
    broadcast 10.0.11.255


----------------
ping www.google.com
PING www.l.google.com (72.14.204.147) 56(84) bytes of data.

cannot ping

on the Guest VM, route shows:
route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.0.11.0       *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     1000   0        0 eth0
default         10.0.11.1       0.0.0.0         UG    100    0        0 eth0

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4 Replies
AndreTheGiant
Immortal
Immortal

Can you ping the default gw?

Who is the default gw?

Andre

Andrew | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro
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kamal2222ahmed
Contributor
Contributor

The default gateway is 10.0.11.1 , and yes i can ping it

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AndreTheGiant
Immortal
Immortal

I mean what device is it?

Patcket arrive there... so the problem is in the default gw.

Check NAT or firewall rules.

Andrew | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro
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kamal2222ahmed
Contributor
Contributor

since you mentioned device, i think the following article

http://www.howtoforge.com/virtualization-with-kvm-on-ubuntu-10.10

addresses it, even though it is not about VMWare specific, but might give us a clue

Now the ifconfig on the host ubuntu, shows:

ifconfig
eth0      Link encap:Ethernet  HWaddr 84:2b:2b:b1:51:35 
          inet addr:10.0.1.163  Bcast:10.0.1.255  Mask:255.255.255.0
          inet6 addr: fe80::862b:2bff:feb1:5135/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26378952 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15955781 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:28492174923 (28.4 GB)  TX bytes:6178672736 (6.1 GB)
          Interrupt:21 Memory:f7fe0000-f8000000

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:1026543 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1026543 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:164602660 (164.6 MB)  TX bytes:164602660 (164.6 MB)

virbr0    Link encap:Ethernet  HWaddr 02:78:1e:bd:90:56 
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::78:1eff:febd:9056/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:156 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:15261 (15.2 KB)

but as mentioned in the article

/etc/network/interfaces, was

auto lo
iface lo inet loopback

i changed it to :

auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

auto br0
iface br0 inet static
        address 10.0.11.101
        network 10.0.11.0
        netmask 255.255.255.0
        broadcast 10.0.11.255
        gateway 10.0.11.1
        bridge_ports eth0
        bridge_fd 9
        bridge_hello 2
        bridge_maxage 12
        bridge_stp off

now, i am not sure about br0 , maybe it should be virbr0  ?

anyway i will try it out and will post the results. in the meantime, if anyone thinks / knows that THIS is the solution and have alrady tried it, please post it here.

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