subnet network setup

[blackbumer]

Hello,
i have an subnet from ripe

like

IP: 77.66.114.128 /25
Maske: 255.255.255.128
Broadcast: 77.66.114.255
subnet range 77.66.114.129 to 178.63.114.254

and 1 additional ip for proxmox host like
address 77.66.18.202
netmask 255.255.255.192
gateway 77.66.18.193

how to configure right /etc/network/interfaces for this ripe data? right?
atm i have such config but when i can't ping from kvm vps(veth) to any openvz(venet) container

# network interface settings
auto lo
iface lo inet loopback

#iface eth0 inet manual

auto eth0
iface eth0 inet static
        address  77.66.18.202
        netmask  255.255.255.192
        gateway  77.66.18.193
        post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp

auto vmbr0
iface vmbr0 inet static
        address 77.66.114.254
        netmask 255.255.255.128
        network 77.66.114.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0
        post-up echo 1 > /proc/sys/net/ipv6/conf/eth0/proxy_ndp
        post-up /etc/danil/kvm-routing-up.sh

 

[blackbumer]

if i setup my network in this way, could i ping venet interfaces from veth in same subnet range?
# network interface settings
auto lo
iface lo inet loopback

iface eth0 inet manual

auto vmbr0
iface vmbr0 inet static
address 77.66.18.202
netmask 255.255.255.192
gateway 77.66.18.193
bridge_ports eth0
bridge_stp off
bridge_fd 0

post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp

auto vmbr1
iface vmbr1 inet static
address 77.66.114.254
netmask 255.255.255.128
network 77.66.114.0
bridge_ports eth0
bridge_stp off
bridge_fd 0

 

[blackbumer]

found in another thread

auto lo
iface lo inet loopback
iface eth0 inet manual
auto vmbr0
iface vmbr0 inet static
address 77.66.18.202
netmask 255.255.255.192
gateway 77.66.18.193
bridge_ports eth0
bridge_stp on
bridge_fd 0
post-up route add -net 77.66.114.128 netmask 255.255.255.128 dev vmbr0

but witch gateway i should use in kvm ?

 

[blackbumer]

i have an such setup

internet
|
|
|
[WAN] (77.66.18.202/255.255.255.192 gw 77.66.18.193)
PROXMOX
|
| subnet for VPS (77.66.114.128/255.255.255.128)
|-------------------|-----------------|--------------------|
VPS101(openvz) vps102 (kvm) vps103(kvm)
77.66.114.129/25 77.66.114.130/25 77.66.114.131/25

for openvz containers all works fine
but for kvm need to setup default route... witch one i should use?
my /etc/network/interfaces looks like

auto lo
iface lo inet loopback
iface eth0 inet manual
auto vmbr0
iface vmbr0 inet static
        address  77.66.18.202
        netmask  255.255.255.192
        gateway  77.66.18.193
        bridge_ports eth0
        bridge_stp on
        bridge_fd 0
        post-up route add -net 77.66.114.128 netmask 255.255.255.128 dev vmbr0

 

[udo]

Hi,
do i understand you right, that you have an offical ip (77.66.18.202 - the others IP in this block are not for you?!) and a official subnet (77.66.114.128/25) which is routed through your provider-ip 77.66.18.202?!

If this is right, your proxmox host need to be an router - like
eth0 - vmbr0 (77.66.18.202)
eth1 - vmbr1 (77.66.114.254)
echo 1 > /proc/sys/net/ipv4/ip_forward

the kvm-guests need to bridge to vmbr1 and the default gateway must be 77.66.114.254.

If you have only one nic you can use vmbr0:1 for your ripe-block?!

Perhaps it's help

Udo