[Xen-users] networking confusion

[<JDuncan@xxxxxxxxxxxxxxxx>]

I know it’s hard to believe, with all of the amazingly contradictory information out on the internet, but after 2 days of reading and testing I’m still not 100% with getting my Xen environment networked properly.

 

I have my dom0 setup and it’s ALMOST happy.  It can speak on the 2 needed networks. 

 

10.175.8.0/21 is an internal network

10.150.8.0/24 is a natted network to the outside

 

eth0      Link encap:Ethernet  HWaddr 00:19:B9:F2:1B:C3

          inet addr:10.175.8.158  Bcast:10.175.15.255  Mask:255.255.248.0

          inet6 addr: fe80::219:b9ff:fef2:1bc3/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:591562 errors:0 dropped:0 overruns:0 frame:0

          TX packets:210322 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:855948093 (816.2 MiB)  TX bytes:17183183 (16.3 MiB)

          Interrupt:16 Memory:f8000000-f8012100

 

eth1      Link encap:Ethernet  HWaddr 00:19:B9:F2:1B:C5

          inet addr:10.150.8.158  Bcast:10.150.8.255  Mask:255.255.255.0

          inet6 addr: fe80::219:b9ff:fef2:1bc5/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:5327 errors:0 dropped:0 overruns:0 frame:0

          TX packets:200 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:367839 (359.2 KiB)  TX bytes:21044 (20.5 KiB)

 

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:21 errors:0 dropped:0 overruns:0 frame:0

          TX packets:21 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:2000 (1.9 KiB)  TX bytes:2000 (1.9 KiB)

 

peth1     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF

          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link

          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1

          RX packets:12707 errors:0 dropped:0 overruns:0 frame:0

          TX packets:200 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:861593 (841.3 KiB)  TX bytes:23350 (22.8 KiB)

          Interrupt:16 Memory:f4000000-f4012100

 

vif0.1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF

          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link

          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1

          RX packets:200 errors:0 dropped:0 overruns:0 frame:0

          TX packets:5327 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:21044 (20.5 KiB)  TX bytes:367839 (359.2 KiB)

 

vif7.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF

          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link

          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1

          RX packets:370 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1860 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:32

          RX bytes:17297 (16.8 KiB)  TX bytes:120860 (118.0 KiB)

 

virbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF

          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0

          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:189755 errors:0 dropped:0 overruns:0 frame:0

          TX packets:555037 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:10965164 (10.4 MiB)  TX bytes:824668323 (786.4 MiB)

 

xenbr1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF

          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1

          RX packets:5069 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:287789 (281.0 KiB)  TX bytes:0 (0.0 b)

 

I currently have one test Guest dom set up, mgixentest.  It’s config file looks as follows:

 

# cat /etc/xen/mgixentest

name = "mgixentest"

uuid = "8eb40858-96b7-baad-1390-d44c01342e43"

maxmem = 512

memory = 512

vcpus = 1

bootloader = "/usr/bin/pygrub"

>

>

>

vfb = [  ]

disk = [ "file:/var/lib/xen/images/mgixentest-disk0,xvda,w" ]

vif = [ "mac=00:16:3e:7f:1e:33,bridge=virbr0" ]

 

My goal:

 

1.       Each guest domN will be assigned an IP on either 1 or both of the above networks (10.175.x.x or 10.150.x.x).

2.       Each guest will be reaching from within the 10.175.8.0/21 network to and from other machines.

3.       Each guest (if so supplied) will have external access to the internet via the 10.150.8.0/24 network

Can someone please get me going down the correct path?

Thanks for any insight.

 

Jamie Duncan

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