<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="NL-BE" link="blue" vlink="purple"> <div class="WordSection1"> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Don’t do<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US">auto eth1<br> iface eth1 inet static<br> address 10.1.3.33<br> netmask 255.255.255.0<br> gateway 10.1.3.1<br> dns-nameservers 192.168.2.11 192.168.2.12<br> <br> </span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Just only<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US">auto eth1<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Maybe this helps?<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal"><b><span lang="NL" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Van:</span></b><span lang="NL" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> libvirt-users-bounces@redhat.com [mailto:libvirt-users-bounces@redhat.com] <b>Namens </b>Aditya Gupta<br> <b>Verzonden:</b> dinsdag 5 juli 2016 19:36<br> <b>Aan:</b> libvirt-users@redhat.com<br> <b>Onderwerp:</b> [libvirt-users] Problem in bridged networking<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><o:p> </o:p></p> <div> <div> <div> <div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Hello,<o:p></o:p></p> </div> <p class="MsoNormal" style="margin-bottom:12.0pt">I am facing some problems in bridged networking.<o:p></o:p></p> </div> <p class="MsoNormal" style="margin-bottom:12.0pt">I have successfully created a bridge br0 and added a virtual machine to it. Now the address of virtual machine is 10.1.3.31. I am able to connect to this virtual machine by another computer on same network.<o:p></o:p></p> </div> <p class="MsoNormal" style="margin-bottom:12.0pt">The virtual machine is hosting a simple python http server on port 8000, while some other service is running on port 80<o:p></o:p></p> </div> <div> <p class="MsoNormal">When I try his on my main server :<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"># curl <a href="http://10.1.3.31:80"> 10.1.3.31:80</a><o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Response I get is this : <br> * Rebuilt URL to: <a href="http://10.1.3.31:80/">10.1.3.31:80/</a><br> * Hostname was NOT found in DNS cache<br> * Trying 10.1.3.31...<br> * Connected to 10.1.3.31 (10.1.3.31) port 80 (#0)<br> > GET / HTTP/1.1<br> > User-Agent: curl/7.35.0<br> > Host: 10.1.3.31<br> > Accept: */*<br> > <br> * Recv failure: Connection reset by peer<br> * Closing connection 0<br> curl: (56) Recv failure: Connection reset by peer<o:p></o:p></p> </div> <div> <p class="MsoNormal">But when I try this on any other port<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"># curl <a href="http://10.1.3.31:8000"> 10.1.3.31:8000</a><o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Response I get is this:<br> * Rebuilt URL to: <a href="http://10.1.3.31:8000/">10.1.3.31:8000/</a><br> * Hostname was NOT found in DNS cache<br> * Trying 10.1.3.31...<br> * connect to 10.1.3.31 port 8000 failed: Connection timed out<br> * Failed to connect to 10.1.3.31 port 8000: Connection timed out<br> * Closing connection 0<br> curl: (7) Failed to connect to 10.1.3.31 port 8000: Connection timed out<br> <br> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Output of iptables -L: <br> Chain INPUT (policy ACCEPT)<br> target prot opt source destination <br> ACCEPT tcp -- anywhere anywhere tcp dpt:ftp<br> ACCEPT tcp -- anywhere anywhere tcp dpt:8000<br> ACCEPT tcp -- anywhere anywhere tcp dpt:1022<br> <br> Chain FORWARD (policy DROP)<br> target prot opt source destination <br> ACCEPT all -- anywhere <a href="http://10.0.0.0/16">10.0.0.0/16</a> state RELATED,ESTABLISHED<br> ACCEPT tcp -- anywhere 10.0.2.4 tcp dpt:http-alt<br> ACCEPT tcp -- anywhere 10.0.2.4 tcp dpt:1883<br> ACCEPT tcp -- anywhere 10.0.2.4 tcp dpt:1883<br> TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU<br> <br> Chain OUTPUT (policy ACCEPT)<br> target prot opt source destination<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Output of ifconfig:<br> br0 Link encap:Ethernet HWaddr 00:1a:64:c1:31:2e <br> inet addr:10.1.3.33 Bcast:10.1.3.255 Mask:255.255.255.0<br> inet6 addr: fe80::21a:64ff:fec1:312e/64 Scope:Link<br> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br> RX packets:1578351 errors:0 dropped:15619 overruns:0 frame:0<br> TX packets:1327458 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:0 <br> RX bytes:198829729 (198.8 MB) TX bytes:346380435 (346.3 MB)<br> <br> eth1 Link encap:Ethernet HWaddr 00:1a:64:c1:31:2e <br> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br> RX packets:7429105 errors:0 dropped:31238 overruns:0 frame:0<br> TX packets:7684361 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:1000 <br> RX bytes:782334104 (782.3 MB) TX bytes:2221485458 (2.2 GB)<br> <br> lo Link encap:Local Loopback <br> inet addr:127.0.0.1 Mask:255.0.0.0<br> inet6 addr: ::1/128 Scope:Host<br> UP LOOPBACK RUNNING MTU:65536 Metric:1<br> RX packets:87278 errors:0 dropped:0 overruns:0 frame:0<br> TX packets:87278 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:0 <br> RX bytes:12350508 (12.3 MB) TX bytes:12350508 (12.3 MB)<br> <br> vnet0 Link encap:Ethernet HWaddr fe:54:00:14:0e:98 <br> inet6 addr: fe80::fc54:ff:fe14:e98/64 Scope:Link<br> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br> RX packets:6411332 errors:0 dropped:0 overruns:0 frame:0<br> TX packets:6277721 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:500 <br> RX bytes:1909595770 (1.9 GB) TX bytes:656284846 (656.2 MB)<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt">Output of cat /etc/network/interfaces :<br> auto lo<br> iface lo inet loopback<br> <br> auto eth1<br> iface eth1 inet static<br> address 10.1.3.33<br> netmask 255.255.255.0<br> gateway 10.1.3.1<br> dns-nameservers 192.168.2.11 192.168.2.12<br> <br> auto br0<br> iface br0 inet static<br> address 10.1.3.33<br> netmask 255.255.255.0<br> gateway 10.1.3.1<br> dns-nameservers 192.168.2.11 192.168.2.12<br> bridge_ports eth1<br> bridge_stp off<br> bridge_maxwait 5<br> dns-nameservers 192.168.2.11 192.168.2.12<o:p></o:p></p> </div> </div> </div> </div> </body> </html>