Dear all, since several days i run Xen 4.1.2 Dom0 (Gentoo Linux x86_64) with several Gentoo Linux (x86_64) and a "historic" NetBSD 5.99.39 (x86) DomU (guests) - bridged setup. I've set up a second bridge on Dom0 and gave each DomU a second network interface connected to this bridge with a private subnet ip. The private subnet has no gateway. Connectivity between the Linux hosts (DomU -> DomU and DomU -> Dom0) works as expected, but communication from/to the NetBSD Domu did not work properly with "crazy" effects: I can ping (!) from / to the NetBSD DomU without packet loss, but if i try to open any TCP connection (ssh, http, smtp) the connection just "hangs". examples: ======== - If i try to connect a SMTP service at the DomU i get the SMTP banner and two lines out, can put in i.e. QUIT or help but nothing more happens. - If i try i.e. mysqlshow against the NetBSD DomU i get an answer if the output is short - on longer requests i get a auth package error. Alternatively i tried to set up a second (private) subnet as aliases on the first interfaces / bridge with same effect. The interesting thing is that exactly these had worked properly with an older Dom0 setup with XEN 3.4.2 and 2.6.34-xen-r2 x86_64 kernel (Gentoo Linux). Here is the config of the second netbsd DomU interface: --- snip --- xennet1: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500 capabilities=2800<TCP4CSUM_Tx,UDP4CSUM_Tx> enabled=0 address: 00:0c:6e:40:38:b2 inet 10.10.10.2 netmask 0xffffff00 broadcast 10.10.10.255 inet6 fe80::20c:6eff:fe40:38b2%xennet1 prefixlen 64 scopeid 0x3 --- snap --- And here the bridge configuration: --- snip --- xen ~ # brctl show bridge name bridge id STP enabled interfaces xenbr0 8000.001cc441f06a no eth1 vif1.0 vif10.0 vif4.0 vif5.0 xenint0 8000.001cc441f07e no eth0 vif10.1 vif4.1 (-> NetBSD DomU) xen ~ # ifconfig xenint0 xenint0 Link encap:Ethernet HWaddr 00:1c:c4:41:f0:7e inet addr:10.10.10.1 Bcast:10.10.10.255 Mask:255.255.255.0 inet6 addr: fe80::fc20:77ff:fee7:5fd6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2103 errors:0 dropped:0 overruns:0 frame:0 TX packets:3486 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:124835 (121.9 KiB) TX bytes:297380 (290.4 KiB) --- snap --- Is this a problem of the NetBSD DomU build or the newer Xen 4.1.2 software version? Any help or hint is welcome here? Many thanks in advance. best regards, Niels. -- --- Niels Dettenbach Syndicat IT&Internet http://www.syndicat.com/
Description: This is a digitally signed message part.