Help - cannot connect to win2008 guest

Y

yatesco

Renowned Member
Sep 25, 2009
230
10
83
Hi,

I have a (KVM) windows server 2008 guest and I cannot connect to it from a public IP.

The host has a single eth0 (94.....) but there are a number of other IP addresses mapped (91....) which are configured via eth0:0 aliases (i.e. eth0:0, eth0:1 etc.)

There are a number of openvz containers with internal IPs (10....) and I use shorewall (http://www.myatus.co.uk/2009/08/31/guide-firewall-and-router-with-proxmox/) to route the traffic. This works fine, but I just cannot achieve the same thing with KVM.

Things I have tried:

- using vmbr0 with a 10... IP address with the eth0 as the gateway (netmask 255.255.255.255)
- using vmbr0 with the public address (91...), obviously the 91.. address isn't mapped to eth0:X
I have the tried the same with NAT. In addition I tried NAT with DHCP and it received a 10.0.2.X IP (from proxmox I assume - there is no dhcp server running anywhere else!). I then mapped the 91... address to eth0:X and tried a port forward, but no luck.

I am running out of ideas. I realise I have a custom setup with the firewall, but I just don't get what to do :(

Relevant configuration files (this is from the host with 2 openvz contains and 1 KVM machine):

ifconfig:
Code: 
dummy0    Link encap:Ethernet  HWaddr 0a:7d:57:9a:86:29
          inet6 addr: fe80::87d:57ff:fe9a:8629/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1356 (1.3 KiB)

eth0      Link encap:Ethernet  HWaddr 00:1c:c0:ee:c9:e8
          inet addr:94.X.X.X Bcast:94.23.224.255  Mask:255.255.255.0
          inet6 addr: fe80::21c:c0ff:feee:c9e8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:101668 errors:0 dropped:0 overruns:0 frame:0
          TX packets:78707 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:104430339 (99.5 MiB)  TX bytes:60058805 (57.2 MiB)

eth0:0    Link encap:Ethernet  HWaddr 00:1c:c0:ee:c9:e8
          inet addr:91.X.X.X  Bcast:91.255.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:1    Link encap:Ethernet  HWaddr 00:1c:c0:ee:c9:e8
          inet addr:91.X.X.X  Bcast:91.255.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:2    Link encap:Ethernet  HWaddr 00:1c:c0:ee:c9:e8
          inet addr:91.X.X.X Bcast:91.255.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:3    Link encap:Ethernet  HWaddr 00:1c:c0:ee:c9:e8
          inet addr:X.X.X  Bcast:91.255.255.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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:2035 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2035 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:357512 (349.1 KiB)  TX bytes:357512 (349.1 KiB)

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          RX packets:54 errors:0 dropped:0 overruns:0 frame:0
          TX packets:53 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:8924 (8.7 KiB)  TX bytes:2724 (2.6 KiB)

vmbr0     Link encap:Ethernet  HWaddr 0a:7d:57:9a:86:29
          inet addr:94.X.X.X  Bcast:94.23.224.255  Mask:255.255.255.0
          inet6 addr: fe80::87d:57ff:fe9a:8629/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:468 (468.0 B)

shorewall zones:
Code: 
#ZONE   TYPE            OPTIONS         IN                      OUT
#                                       OPTIONS                 OPTIONS

fw      firewall
net     ipv4
dmz     ipv4

shorewall interfaces:
Code: 
#ZONE   INTERFACE       BROADCAST       OPTIONS
net     eth0            detect          blacklist,nosmurfs
dmz     venet0          detect          routeback
dmz     vmbr0           detect          routeback,bridge

shorewall policy:
Code: 
#SOURCE DEST    POLICY          LOG     LIMIT:          CONNLIMIT:
#                               LEVEL   BURST           MASK

# From Firewall Policy
fw      fw      ACCEPT
fw      net     ACCEPT
fw      dmz     ACCEPT

# From DMZ Policy
dmz     dmz     ACCEPT
dmz     net     ACCEPT
dmz     fw      DROP            info    1/sec:2

# From Net Policy
net     fw      DROP            info    1/sec:2
net     dmz     DROP            info    8/sec:30

# THE FOLLOWING POLICY MUST BE LAST
#
all     all     REJECT          info

shorewall rules
Code: 
#ACTION          SOURCE     DEST       PROTO   DEST        SOURCE     ORIGINAL    RATE

# Permit access to SSH
SSH/ACCEPT       net        fw         -       -            -          -          6/min:5

# Permit access to Proxmox Manager and Console
ACCEPT           net        fw         tcp     443,5900

# PING Rules
Ping/ACCEPT      all        all

#wiki
DNAT            net          dmz:10.0.1.1             tcp     22       -    91.X.X.X
DNAT            net          dmz:10.0.1.1             tcp     80       -    91.X.X.X
DNAT            net          dmz:10.0.1.1             tcp     443       -    91.X.X.X

#blog
DNAT            net          dmz:10.0.1.2             tcp     22       -    91.X.X.X
DNAT            net          dmz:10.0.1.2             tcp     80       -    91.X.X.X
DNAT            net          dmz:10.0.1.2             tcp     443       -    91.X.X.X

#bob (this is the one that isn't working!!!)
#DNAT            net          dmz:10.0.2.15             tcp     -       -    91.X.X.X
# LAST LINE -- DO NOT REMOVE

shorewall masq
Code: 
#INTERFACE      SOURCE          ADDRESS         PROTO   PORT(S) IPSEC   MARK
eth0            10.0.0.0/8

# LAST LINE -- DO NOT REMOVE
 
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