On Wed, Jun 15, 2011 at 9:12 PM, Amitava Shee <amitava.s...@gmail.com> wrote: > My ubuntu 11.04 guest is not able to connect to the internet when launched > as -net user. Any help is much appreciated. > > qemu command line > ============== > amitava@bonjovi:/var/vms$ qemu-system-x86_64 -m 512 -drive > index=0,media=disk,if=virtio,file=ub2.qcow2,boot=on -vnc :0 -monitor stdio > -net nic,model=virtio,vlan=1 -net user,vlan=1,hostname=ubuntu2 > > ifconfig output in guest > ================= > amitava@ubuntu2:~$ ifconfig eth0 > eth0 Link encap:Ethernet HWaddr 52:54:00:12:34:56 > inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 > inet6 addr: fe80::5054:ff:fe12:3456/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:11 errors:0 dropped:0 overruns:0 frame:0 > TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:1984 (1.9 KB) TX bytes:1748 (1.7 KB) > > amitava@ubuntu2:~$ nslookup google > Server: 10.0.2.3 > Address: 10.0.2.3#53 > > Non-authoritative answer: > Name: google.com > Address: 74.125.115.104 > Name: google.com > Address: 74.125.115.106 > Name: google.com > Address: 74.125.115.105 > Name: google.com > Address: 74.125.115.147 > Name: google.com > Address: 74.125.115.103 > Name: google.com > Address: 74.125.115.99
This and the IP address of the eth0 show that the connection is working. > amitava@ubuntu2:~$ traceroute google.com > traceroute to google.com (74.125.115.99), 30 hops max, 60 byte packets > 1 10.0.2.2 (10.0.2.2) 0.469 ms 0.457 ms 0.453 ms > 2 * * * > 3 * * * > 4 * * * > 5 * * * > 6 * * * > 7 * * * > 8 * * * > 9 * * * > 10 * * * > 11 * * * > 12 * * * > 13 * * * > 14 * * * > 15 * * * > 16 * * * > 17 * * * > 18 * * * > 19 * * * > 20 * * * > 21 * * * > 22 * * * > 23 * * * > 24 * * * > 25 * * * > 26 * * * > 27 * * * > 28 * * * > 29 * * * > 30 * * * User mode network (SLIRP) only supports plain TCP and UDP, traceroute and ping (which need ICMP) do not work.
