RE: Re: [OT]ish Router +modem problem

["Dean Smith" <dean@xxxxxxxxxxxxxxx>]

Does the modem have a route for 192.168.1.0/24 via the router
(192.168.2.102) ? - or is the router NAT'ng everything behind its own
address ?



From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Peter Church
Sent: 27 August 2011 12:07
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Re: [OT]ish Router +modem problem





Hi all (Nick especially!)

I parked this thread a while back because I couldn't make changes to the
system at the time but I'm now back with it and have another week here to
try to fix it.

A quick recap - I'm trying to set up a remote network and I cannot get the
LAN to connect to the web via a Netgear Router/Firewall and a 3G modem. It
should be a simple plug and play problem but isn't! I understand enough to
know this should work, but not enough to fix it! I've added some logs and
parameters at the end of this note.

I'm happy to take this offlist if someone can help me out as I know this
isn't really the place for it, but most of us here have some networking
experience - and the ultimate aim is to control Comfort, DVR and 1-wire in
a
holiday home from remote locations so ultimately HA!

Thanks in advance

Pete

Modem WAN:

IP Address: 92.251.xx.xx

DNS Server: 83.136.47.249

193.120.14.101

Modem LAN

IP Address: 192.168.2.101

Subnet Mask: 255.255.255.0

DHCP Server: Enabled

Start IP Address: 192.168.2.102

End IP Address: 192.168.2.200

DHCP Lease(s): 86400

Router WAN

Connection Method Dynamic IP

IP Address 192.168.2.102

Network Mask 255.255.255.0

Default Gateway 192.168.2.101

DHCP Server 192.168.2.101

Lease Time 86400

Domain Name Server 192.168.2.101

Router LAN

IP Address 192.168.1.1

DHCP DHCP Server

IP Subnet Mask 255.255.255.0

PC IPconfig

Ethernet adapter Local Area Connection:

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . :
fe80::f1fd:9e5b:70a9:2d8c%11(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Lease Obtained. . . . . . . . . . : 27 August 2011 10:34:43

Lease Expires . . . . . . . . . . : 30 August 2011 10:51:43

Default Gateway . . . . . . . . . : 192.168.1.1

DHCP Server . . . . . . . . . . . : 192.168.1.1

DHCPv6 IAID . . . . . . . . . . . : 240920074

DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-15-5F-74-9B-5C-26-0A-55-3D-87

DNS Servers . . . . . . . . . . . : 192.168.1.1

NetBIOS over Tcpip. . . . . . . . : Enabled

I also rebooted the router and this is what the initial Security Log shows
(I can't seem to see any other logs to see if they give any other details)

Sun, 01/01/1900 00:00:00 - Netgear Activated.

Sun, 01/01/1900 00:00:00 - Successful administrator login -
Source:192.168.1.2, 62287, LAN - Destination:192.168.1.1, 80, LAN

Sun, 01/01/1900 00:00:00 - DYNDNS.ORG: Starting update!!

Sat, 08/27/2011 02:41:16 - Get NTP Time: Sat, 08/27/2011 02:41:16

Sat, 08/27/2011 02:41:16 - DYNDNS.ORG: The update changed no settings, and
is considered abusive.

Sat, 08/27/2011 02:41:24 - TCP connection dropped - Source:212.161.8.3, 80,
WAN - Destination:192.168.2.102, 16488, LAN - 'Suspicious TCP Data'

Sat, 08/27/2011 02:41:30 - TCP connection dropped - Source:79.107.138.124,
50057, WAN - Destination:192.168.2.102, 80, LAN - 'WEB'

Sat, 08/27/2011 02:41:36 - TCP connection dropped - Source:83.132.250.182,
1441, WAN - Destination:192.168.2.102, 80, LAN - 'WEB'

Sat, 08/27/2011 02:42:00 - TCP connection dropped - Source:193.109.81.89,
443, WAN - Destination:192.168.2.102, 18942, LAN - 'Suspicious TCP Data'

End of Log ----------

Also a Routing Table from the Router:

Destination

Mask

Gateway

Metric

Active

192.168.1.0

255.255.255.0

192.168.1.1

1

Yes

192.168.2.0

255.255.255.0

192.168.2.102

1

Yes

0.0.0.0

0.0.0.0

192.168.2.101

1

Yes

Other thing to note:

When I connect either a PC or a LAN port of the router directly to the
modem
the modem RJ45 lights are both on as orange on, green flashing, whereas
when
I connect the Internet port of the router to the modem I just get one light
the green flashing.

From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
[mailto:ukha_d@xxxxxxx
<mailto:ukha_d%40yahoogroups.com>
] On Behalf
Of
Nick Austin
Sent: 08 January 2011 12:31
To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
Subject: Re: [ukha_d] Re: [OT]ish Router +modem problem

Peter,

Well those numbers look good but the DNS is a bit odd. It should work
but I would of thought that the FVS318 router had it's own DNS server
(for the LAN ports) and DNS client (for the WAN port) in which case
the PC should be using a DNS of 192.168.1.1. Even if the DNS isn't
working you should still be able to access the web via IP addresses so
something else must be wrong. The logs will probably reveal all when
you next have access..

Nick.

On Sat, Jan 8, 2011 at 9:47 AM, Peter Church <yahoo@xxxxxxx
<mailto:yahoo%40petechurch.co.uk>
<mailto:yahoo%40petechurch.co.uk>
> wrote:
> Nick,
>
>
>
> Sorry I can't actually make any configuration changes as this is the
remote
> system and I won't be with it for another few weeks. What I do
remember
was
> that the (Windows XP) PC is getting
>
>
>
> DHCP enabled Yes
>
> Autoconfig Yes
>
> IP 192.168.1.2
>
> Subnet 255.255.255.0
>
> Default Gateway 192.168.1.1 (the router)
>
> DHCP Server 192.168.1.1 (the router)
>
> DNS Servers 192.168.3.1 (the modem) & 192.168.3.2 (the modem +1
which
> is odd)
>
>
>
> I might need to park this thread and pick it up again when I am near
the
> system. It just seemed odd to me that a router cannot sit behind a
modem
as
> surely that is what a router is designed to do, so I thought there
might
be
> a very straigntforward answer
>
>
>
> Thanks all for the help.
>
>
> Pete
>
>
>
>
>
>
>
>
>
>
>
> _____
>
> From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
<mailto:ukha_d%40yahoogroups.com>
[mailto:ukha_d@xxxxxxx
<mailto:ukha_d%40yahoogroups.com>
<mailto:ukha_d%40yahoogroups.com>
] On Behalf
Of
> Nick Austin
> Sent: 08 January 2011 08:45
> To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
<mailto:ukha_d%40yahoogroups.com>
> Subject: Re: [ukha_d] Re: [OT]ish Router +modem problem
>
>
>
>
>
> Peter,
> It would probably help to post any logs that the router is keeping
> (clear the logs first then do a reboot).
>
> Also if PC is running Windows then what is the output of the ipconfig
> /all command?
>
> Hard to say for certain at the moment if it's a gateway or DNS or
routing
> issue.
>
> Nick.

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