Hi everybody - my first post! I have been running UML successfully close to 18 months. I general run a Debian Sarge host, using 2.6.8 kernel and the UML's still run a 2.4.27 kernel. The host hardware is an Intel based system with 2G of memory and the production server as an IBM x346
All seems to run well until I tried to bond two 1G Ethernet ports. I use ifenslave to create a virtual network interface on the host called bond0 using the round robin mode. I start the UML's in the usual manner using uml_switch etc. So the UML is assigned tap0. All server (host and UMLs) are on the same subnet as the client PC accessing the servers. The problem is as follows, (all test use ping): I cannot access the UML from any PC. I cannot access the network from the UML. I can access the host from networked PC's I can accss the UML from the host. I can access the host from the UML. As part of the UML boot, it made changes to the host /proc/sys/net/ipv4/if_forward, setting it to '1' Also it made some changes using ARP (do not really understand this bit yet) I then added the following: iptables -t nat -A POSTROUTING -o bond0 -j MASQUERADE (I hope remembered this correctly) After this: I can access the network from the UML I still cannot access the UML from the network. I unsuccessfully fiddled a little with the routing tables. Has anybody have any ideas how I can correct this problem. I suspect I need to add another iptables rule to allow network access to the UML. Thanks you all in advance Buggy ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
