I am not really a
network expert when it comes to Linux but got my VM accessible
through an public IP. It worked like a charm for quite a while but
suddenly quit working and I seem to be unable to get it back
reachable again.
The server I installed my VM on is being hosted by Hetzner. I was
provided with the following IP information:
IP: 88.198.68.89
NM: 255.255.255.224
GW: 88.198.68.65
Broadcast: 88.198.68.95
IP: 46.4.126.118
NM: 255.255.255.248
GW: 46.4.126.113
Broadcast: 46.4.126.119
The first block is used by the Dom0, the second was used by the
DomU. I followed this guide:
http://jimmyg.org/blog/2007/xen-routing-with-public-static-ips-and-a-private-virtual-network.html
to get everything up and running on an external IP but for some
reason am not longer able to access the virtual machine through
46.4.126.118. I can ping it on the Dom0 and I can ping the Dom0
from within the DomU but am unable to ping anything else..
Following information / configuration is available:
Dom0:
- ifconfig
eth0 Link encap:Ethernet HWaddr
6c:62:6d:95:7c:fe
inet addr:88.198.68.89 Bcast:88.198.68.95
Mask:255.255.255.224
inet6 addr: fe80::6e62:6dff:fe95:7cfe/64
Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:837 errors:0 dropped:0 overruns:0
frame:0
TX packets:741 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:1000
RX bytes:84242 (82.2 KiB) TX bytes:101121 (98.7
KiB)
Interrupt:30 Base address:0x8000
vif2.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
inet addr:88.198.68.89 Bcast:88.255.255.255
Mask:255.255.255.255
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:2 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:384 (384.0 B) TX bytes:200 (200.0 B)
- /etc/network/interfaces
auto eth0
iface eth0 inet static
address 88.198.68.89
netmask 255.255.255.224
gateway 88.198.68.65
broadcast 88.198.68.95
- route -n
Destination Gateway Genmask Flags
Metric Ref Use Iface
46.4.126.118 0.0.0.0 255.255.255.255 UH
0 0 0 vif2.0
88.198.68.64 0.0.0.0 255.255.255.224 U
0 0 0 eth0
0.0.0.0 88.198.68.65 0.0.0.0 UG
0 0 0 eth0
DomU:
- ifconfig
eth0 Link encap:Ethernet HWaddr
00:50:56:00:0e:66
inet addr:46.4.126.118 Bcast:46.4.126.119
Mask:255.255.255.248
inet6 addr: fe80::250:56ff:fe00:e66/64
Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:2 errors:0 dropped:0 overruns:0
frame:0
TX packets:6 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:1000
RX bytes:172 (172.0 B) TX bytes:468 (468.0 B)
Interrupt:246
- /etc/network/interfaces
auto eth0
iface eth0 inet static
address 46.4.126.118
network 46.4.126.248
netmask 255.255.255.248
up route add 88.198.68.89 dev eth0
up route add default gw 88.198.68.89
down route del default gw 88.198.68.89
down route del 88.198.68.89 dev eth0
- route -n
Destination Gateway Genmask Flags
Metric Ref Use Iface
88.198.68.89 0.0.0.0 255.255.255.255 UH
0 0 0 eth0
46.4.126.112 0.0.0.0 255.255.255.248 U
0 0 0 eth0
0.0.0.0 88.198.68.89 0.0.0.0 UG
0 0 0 eth0
I've disabled all iptables rules for test's sake but can't seem to
find out what's wrong.. Anyone seeing what I do not?
Regards
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