Installation guide

# brctl show
bridge name bridge id STP enabled interfaces
installation 8000.001320f76e8e no eth1
virbr0 8000.000000000000 yes
3. ⁠
Secu rit y co n f ig u rat io n
Configure iptables to allow all traffic to be forwarded across the bridge.
# iptables -I FORWARD -m physdev --physdev-is-bridged -j ACCEPT
# service iptables save
# service iptables restart
Note
Alternatively, prevent bridged traffic from being processed by iptables rules. In
/etc/sysctl.conf append the following lines:
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
Reload the kernel parameters configured with sysctl.
# sysctl -p /etc/sysctl.conf
4. ⁠
Rest art libvirt b ef o re t h e in st allat io n
Restart the libvirt daemon.
# service libvirtd restart
The bridge is configured, you can now begin an installation.
PXE inst allat io n wit h virt - in st all
For virt-install append the --network=bridge:installation installation parameter where
installation is the name of your bridge. For PXE installations use the --pxe parameter.
Examp le 7.3. PXE in st allat io n wit h virt - in st all
# virt-install --accelerate --hvm --connect qemu:///system \
--network=bridge:installation --pxe\
--name EL10 --ram=756 \
--vcpus=4
--os-type=linux --os-variant=rhel5
--file=/var/lib/libvirt/images/EL10.img \
Red Hat En t erp rise Lin ux 5 Virt ualizat ion Guid e
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