[Xen-users] Dom1 can send, but not receive ?

[Oliver Jucknath <oliver@xxxxxxxxxxx>]

Hi,

I have set up my Xen 3.0.2 on a 64 bit gentoo using bridging, because I
want to have a seperate IP adress for each domU. I can send out tcp
packets from my dom1, but I don't get their reply. I can ping the dom0
from my dom1 and vice versa - no problem there. If I ping from my dom1
to an external internet adress, I can see (using tcpdump) the outgoing
packets in the dom1:eth0, the xenbr0 and the response coming back to the
xenbr0 (and my dom0:eth0), but no such packets in the dom1:eth0. If I
ping the dom1 from the outside I can see the packets received by xenbr0,
but not by the dom1:eth0. Any ideas ?

thank you very much,

Oliver

Here my /etc/xen/base config file:

kernel = "/boot/vmlinuz-xen-domU"
memory = 512
name = "base"
vcpus = 4 # make your domain a 4-way
disk = ['phy:/dev/hda5,sda1,w','phy:/dev/hda6,sda2,w']
root = "/dev/sda1 ro"
vif = [ 'bridge=xenbr0' ]

my /etc/xen/xend-config.sxp file:

(xend-relocation-server yes)
(xend-relocation-hosts-allow '^localhost$')
(network-script network-bridge)
(vif-script vif-bridge)
(dom0-min-mem 196)
(dom0-cpus 0)

my dom0 network config:

config_eth0=("85.14.220.63 netmask 255.255.248.0 brd 85.14.223.255")
routes_eth0=("default via 85.14.216.1")

my dom1 network config:

config_eth0=("85.14.217.42 netmask 255.255.248.0 brd 85.14.223.255")
routes_eth0=("default via 85.14.216.1")

my .config file for the dom0 kernel | grep XEN | grep -v \#:

CONFIG_X86_64_XEN=y
CONFIG_X86_XEN_GENAPIC=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN=y
CONFIG_XEN_INTERFACE_VERSION=0x00030101
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PCIDEV_BACKEND=y
CONFIG_XEN_PCIDEV_BACKEND_PASS=y
CONFIG_XEN_BLKDEV_BACKEND=y
CONFIG_XEN_NETDEV_BACKEND=y
CONFIG_XEN_NETDEV_LOOPBACK=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DISABLE_SERIAL=y
CONFIG_XEN_SYSFS=m

my .config file for the domU kernel | grep XEN | grep -v \#:

CONFIG_X86_64_XEN=y
CONFIG_X86_XEN_GENAPIC=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN=y
CONFIG_XEN_INTERFACE_VERSION=0x00030101
CONFIG_XEN_UNPRIVILEGED_GUEST=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DISABLE_SERIAL=y




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