Gentoo Archives: gentoo-user

From: Dale <rdalek1967@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Linksys router BEFSR41 loosing internet
Date: Mon, 20 Dec 2010 08:34:55
Message-Id: 4D0F14CD.10300@gmail.com
In Reply to: Re: [gentoo-user] Linksys router BEFSR41 loosing internet by "J. Roeleveld"
1 J. Roeleveld wrote:
2 > On Sunday 19 December 2010 21:35:57 Dale wrote:
3 >
4 >> Peter Humphrey wrote:
5 >>
6 >>> On Sunday 19 December 2010 13:17:51 Dale wrote:
7 >>>
8 >>>> I found a how to. I read it. This is what I got out of it. It
9 >>>> sounds like I need to let the modem use DHCP with the phone company.
10 >>>>
11 >>> Correct.
12 >>>
13 >>>
14 >>>> Then I need to set the ethernet that comes toward the router to say
15 >>>> 192.168.1.2 then set the router to 192.168.1.5 or something to come
16 >>>> to my puter.
17 >>>>
18 >>> Those two addresses must be on the same network segment, but they aren't
19 >>> - you have your router in between (it routes traffic between one network
20 >>> segment and the other). The side of the router that's connected to the
21 >>> modem can have that address, but the side that's connected to your
22 >>> computers can't have 192.168.1.X. Try 192.168.2.1, say, and your
23 >>> computers 192.168.2.2, 192.168.2.3, ...
24 >>>
25 >>>
26 >>>> Best I can figure, no two can have the same IP. Each device has two
27 >>>> IPs, one coming in, one going out.
28 >>>>
29 >>> Yes, each address belongs to an interface, not to a computer, modem etc.
30 >>> Think of it as the address of one end of a piece of wire.
31 >>>
32 >>>
33 >>>> I think the how to may have made this worse. :-(
34 >>>>
35 >>> Nah - sounds to me like you're getting there... :-)
36 >>>
37 >> Ohhhh. Light bulb moment here, I think. The modem has a network, even
38 >> tho it only has one device connected to it. The router has its own
39 >> network but can have 4 devices connected to it. So, if the modem has
40 >> 192.168.1.1>255 then the router needs 192.168.2.1>255 which is two
41 >> separate networks.
42 >>
43 > If I follow you correctly, then yes
44 >
45 >
46 >> So, if that is true, set the modem to 192.168.1.1 for its IP. Then set
47 >> the router to to 192.168.2.1 for it's network. That would give my puter
48 >> a IP and the second puter another IP and they can talk to each other
49 >> since they are on the same network. Is my light bulb OK so far?
50 >>
51 > If I follow you correctly, then yes
52 >
53 > In schema form:
54 >
55 > INTERNET ---<DHCP from ISP> [Modem]<192.168.1.1>---<192.168.1.2> [ROUTER]
56 > <192.168.2.1> ----- (Other PCs = 192.168.2.2...192.168.2.254)
57 >
58 > (Above should have been a single line)
59 >
60 >
61 >> By the way, I feel asleep watching TV, missed my show too. The internet
62 >> was still up when I got up. I think that setting on the modem got
63 >> changed during a reset, upgrade on its software or something. It
64 >> updates software automatically.
65 >>
66 > Always usefull :/
67 >
68 > Btw, if you use ADSL, an ADSL Modem/Router combination might be easier to
69 > maintain as then you have the Internet-address and LAN network done correctly
70 > with default settings.
71 > Or, if your Modem supports it, set it to "bridge" mode so your Router thinks
72 > it's connected directly to the ISP
73 >
74 > --
75 > Joost
76 >
77 >
78
79 I got to do some more work then. Right now, I can see the router but I
80 can't get to the modem. I did get a static IP for my puter but I think
81 I need to adjust it based on what you said was correct.
82
83 Even tho I can't get to the modem, the internet works. Sort of weird
84 but I think I know why. I'll play with it some in a little bit.
85
86 Is there a tool that will show how the network is set up? Sort of like
87 a flow chart?
88
89 Dale
90
91 :-) :-)