You must set the mtu of the etherstub to 1500 before creating any of the vnics (or domains).
On 10 Oct 2009, at 08:16 PM, Allan <cr4z3d at gmail.com> wrote: > Hello, > > I'm trying to play around with crossbow to use with xen VMs but I'm > having trouble getting this to work properly. Below is a quick > overview of what I'm trying to do. > > --------------- Overview ---------------------- > * setup a zone to handle routing > * setup a zone behind the router > * setup a xen VM behind the router > * have all three on the same network and happily communicating > * SunOS virt 5.11 snv_124 i86pc i386 i86xpv Solaris > > > Currently I have the routing zone (vrouter) and the client zone > (serv) communicating properly. I cannot get xen to play nice with > this though. As you can see below it is using the right etherstub > for the bridge. > > --------------- Zone: global ------------------ > admin at virt:~$ dladm show-link > test0 etherstub 9000 unknown -- -- > t0 vnic 9000 up -- test0 > t1 vnic 9000 up -- test0 > g0 vnic 1500 up -- rge0 > xvm17_0 vnic 9000 up -- test0 > > > Here's my IP scheme: > vrouter t0: 10.50.0.1/16 > vrouter g0: 192.168.60/24 > serv t1: 10.50.0.2/16 > linux eth0: 10.50.0.3/16 > > To show how everything is setup, here's some command line output: > > --------------- Zone: vrouter ------------------ > root at vrouter:~# ifconfig -a > lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> > mtu 8232 index 1 > inet 127.0.0.1 netmask ff000000 > t0: > flags=1100863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,ROUTER,IPv4> > mtu 9000 index 2 > inet 10.50.0.1 netmask ffff0000 broadcast 10.50.255.255 > ether 2:8:20:60:8:df > g0: > flags=1100863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,ROUTER,IPv4> > mtu 1500 index 3 > inet 192.168.1.60 netmask ffffff00 broadcast 192.168.1.255 > ether 2:8:20:8c:26:db > lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> > mtu 8252 index 1 > inet6 ::1/128 > > root at vrouter:~# routeadm > Configuration Current Current > Option Configuration System State > --------------------------------------------------------------- > IPv4 routing enabled enabled > IPv6 routing disabled disabled > IPv4 forwarding enabled enabled > IPv6 forwarding disabled disabled > > Routing services "route:default ripng:default" > > Routing daemons: > > STATE FMRI > disabled svc:/network/routing/ripng:default > disabled svc:/network/routing/legacy-routing:ipv6 > disabled svc:/network/routing/legacy-routing:ipv4 > online svc:/network/routing/ndp:default > online svc:/network/routing/route:default > disabled svc:/network/routing/rdisc:default > > root at vrouter:~# netstat -nr > > Routing Table: IPv4 > Destination Gateway Flags Ref Use > Interface > -------------------- -------------------- ----- ----- ---------- > --------- > default 192.168.1.1 UG 1 0 > 10.50.0.0 10.50.0.1 U 1 0 t0 > 192.168.1.0 192.168.1.60 U 1 1 g0 > 127.0.0.1 127.0.0.1 UH 1 2 lo0 > > Routing Table: IPv6 > Destination/Mask Gateway Flags Ref > Use If > --------------------------- --------------------------- ----- --- > ------- ----- > ::1 ::1 UH > 1 0 lo0 > > > > --------------- Zone: serv ------------------ > root at serv:~# ifconfig -a > lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> > mtu 8232 index 1 > inet 127.0.0.1 netmask ff000000 > t1: flags=1000863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,IPv4> > mtu 9000 index 2 > inet 10.50.0.2 netmask ffff0000 broadcast 10.50.255.255 > ether 2:8:20:71:cd:51 > lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> > mtu 8252 index 1 > inet6 ::1/128 > > root at serv:~# netstat -nr > > Routing Table: IPv4 > Destination Gateway Flags Ref Use > Interface > -------------------- -------------------- ----- ----- ---------- > --------- > default 10.50.0.1 UG 1 2 > 10.50.0.0 10.50.0.2 U 1 1 t1 > 127.0.0.1 127.0.0.1 UH 1 2 lo0 > > Routing Table: IPv6 > Destination/Mask Gateway Flags Ref > Use If > --------------------------- --------------------------- ----- --- > ------- ----- > ::1 ::1 UH > 1 0 lo0 > > root at serv:~# ping 10.50.0.1 > 10.50.0.1 is alive > root at serv:~# ping 192.168.1.60 > 192.168.1.60 is alive > > --------------- Linux VM ------------------ > [root at dev ~]# ifconfig > eth0 Link encap:Ethernet HWaddr 00:16:36:4B:F7:00 > inet addr:10.50.0.3 Bcast:10.50.255.255 Mask:255.255.0.0 > inet6 addr: fe80::216:36ff:fe4b:f700/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:48 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:0 (0.0 b) TX bytes:7839 (7.6 KiB) > Interrupt:10 > > 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:94 errors:0 dropped:0 overruns:0 frame:0 > TX packets:94 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:8272 (8.0 KiB) TX bytes:8272 (8.0 K > > [root at dev ~]# route > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref > Use Iface > 10.50.0.0 * 255.255.0.0 U 0 > 0 0 eth0 > default 10.50.0.1 0.0.0.0 UG 0 > 0 0 eth0 > > [root at dev ~]# ping 10.50.0.1 > PING 10.50.0.1 (10.50.0.1) 56(84) bytes of data. > From 10.50.0.3 icmp_seq=2 Destination Host Unreachable > From 10.50.0.3 icmp_seq=3 Destination Host Unreachable > From 10.50.0.3 icmp_seq=4 Destination Host Unreachable > > --- 10.50.0.1 ping statistics --- > 5 packets transmitted, 0 received, +3 errors, 100% packet loss, time > 4637ms > pipe 3 > > > Any ideas as to why my VM cannot ping anything else on the same > etherstub? > > Allan Feid > Unix Administrator > B.S. 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