TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada
| reply to TilhasBB
Re: Weird Tomato DHCP Issue
.....
I put the 2wire in the LAN port and the ST on the WAN port.
2wire 192.168.2.1 ON LAN 4
ST 192.168.1.254 or 10.0.0.138 ON WAN
Router 192.168.1.1
Working now 
Crossing my fingers |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada | reply to Davesnothere
the 2wire works on LAN or WAN port. Tomato is smart enough to find it and dial into it. the 2wire is on 192.168.2.1. |
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Davesnothere
@teksavvy.com
| reply to Davesnothere
said by TilhasBB  :Good news is, my internet is always working now but at half speed. That's encouraging, and would be what I would expect, and is prob'ly coming thru the WAN port modem rather than the other modem.
To verify that, I suggest unplugging the other modem for a moment. |
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Davesnothere
@teksavvy.com
| reply to TilhasBB
said by TilhasBB :- In case there is any confusion.... My Setup I have TWO modems. Speedtouch 516 and 2Wire 2701 I have WRT54GL Running Tomato/MLPPP Version 1.22-mp3alpha5er1 I am running MLPPP with two connections. Good news is, my internet is always working now but at half speed. Two Modems ?
That changes everything !
If you had a Router with 2 WAN ports (load balancing class), I would know what to do.
Does the 2-Wire modem have a hidden router & dhcp server in it too ?
If yes, that could still cause a problem. |
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Davesnothere
@teksavvy.com
| reply to nigrunze
said by nigrunze :Try starting from scratch. Since you're running Tomato, you can make this easier. On Tomato's Basic Network page, set your modem's IP as 10.0.0.138 (for whatever reason, the speedtouch uses both 192.168.1.254 and 10.0.0.138). Log into the Speedtouch web interface and run the easy setup using the instructions from TekSavvy's FAQ on the forums. Set your modem as bridged and DHCP to be off. Your modem SHOULD work properly now. A couple of side questions please :
Do I understand correctly, is this Bridge Mode and disabling DHCP method simply a fancy way to tell the ST-516 Combo Modem/Router to completely disable the Router part, so that they behave JUST as a Modem ?
And are you saying that you can tell Tomato firmware what IP address to EXPECT a modem connected to their WAN port to have ?
Thanks |
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derekm
join:2008-02-26
 ·TekSavvy Solutions..
 ·Rogers Hi-Speed
| reply to TilhasBB
said by TilhasBB :- The modem was set on Bridge BUT DHCP was on... I never realized. So I went back and disabled it, since then Tomato is only able to connect using the modem on WAN side of router. So I am only getting 1 / 2 connection. - Good news is, my internet is always working now but at half speed. I've never used Tomato, but my guess is that you'll need to move whatever port you have the 2nd modem plugged in to, to the WAN VLAN.
Maybe someone else running Tomato can tell you how they have it physically/virtually connected. |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada
| reply to nigrunze
- Incase there is any confusion.
My Setup
I have TWO modems. Speedtouch 516 and 2Wire 2701
I have WRT54GL Running Tomato/MLPPP Version 1.22-mp3alpha5er1
I am running MLPPP with two connections.
- I powercycled modem and router.
turned on router then turned on modem.
- I have 2wire on WAN and Speedtouch on Port4.
- 10.0.0.138 and 192.168.1.254 nothing happens
- Only Computers in device list on router page.
- The modem was set on Bridge BUT DHCP was on... I never realized. So I went back and disabled it, since then Tomato is only able to connect using the modem on WAN side of router. So I am only getting 1 / 2 connection.
- Good news is, my internet is always working now but at half speed.
nigrunze> When you set the Modem's IP in Tomato's network page thats only for the modem on the WAN side.
But i set it to 10.0.0.138 and it didn't help. |
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nigrunze
join:2009-02-14
Cote Saint-Luc, QC
| reply to Davesnothere
said by Davesnothere :
Damn those Combo Modem Routers ! - They cause more problems than they solve ! (and all to save a few bucks)
And if I had read your post before responding to the one just above it, yes, I have heard of this 'Bridge' mode setting in those beasts, and it sounds like with that plan, you may have it figured out.
And we agree about re-entering the login info.
Do I understand correctly, is that simply a fancy way to tell the unit to completely disable the Router part, in these recent model ST Combo modem/routers ?
Try starting from scratch. Since you're running Tomato, you can make this easier. On Tomato's Basic Network page, set your modem's IP as 10.0.0.138 (for whatever reason, the speedtouch uses both 192.168.1.254 and 10.0.0.138). Log into the Speedtouch web interface and run the easy setup using the instructions from TekSavvy's FAQ on the forums. Set your modem as bridged and DHCP to be off.
Your modem SHOULD work properly now. |
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Davesnothere
@teksavvy.com
| reply to derekm_anon
said by derekm_anon :said by TilhasBB :I removed the DHCP on the Speedtouch modem but now Tomato isn't able to dial in with it. and I am unable to access the modem... any ideas? It looks like you were double nat'd. (i.e. the speedtouch was nat'ing your tomato, which was nat'ing your network - sometimes). You need to change the speedtouch to bridge mode, and connect it to the WAN port of the linksys. You then need to enter your PPPoE details into the linksys. From there, Everything Should Just Work. Damn those Combo Modem Routers ! - They cause more problems than they solve ! (and all to save a few bucks)
And if I had read your post before responding to the one just above it, yes, I have heard of this 'Bridge' mode setting in those beasts, and it sounds like with that plan, you may have it figured out.
And we agree about re-entering the login info.
Do I understand correctly, is that simply a fancy way to tell the unit to completely disable the Router part, in these recent model ST Combo modem/routers ? |
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Davesnothere
@teksavvy.com
| reply to paulwye
said by paulwye :....having two DHCP servers on the same subnet is almost universally going to be a bad idea.... Agreed, and I was alluding to that point in my last post.
said by paulwye :Second, it's pretty obvious from your posted network config that the reason you can't get anywhere with the initially assigned IP is that the gateway is set to 192.168.1.254--i.e., that address, DNS and gateway were assigned by the second modem I do not believe this user has two modems going, at least never said so.
But I do believe they have a Tomato router hooked in between a Combo Modem/Router and the computer(s), and in this situation, the second or phantom DHCP server would be part of rhat Combo unit.
As I perceive it, now that they have turned off the 2nd DHCP server, it has created a NEW problem, because perhaps they do not have their PPPOE login set in the Tomato router, or Gateway or DNS number could still be wrong.
So, can you still currently log into the Tomato router, after you turned off the DHCP of the Modem router ?
If you can, then review whether the suspected settings of Gateway, etc are now showing the previously good _._._.1 setting, or the earlier _._._.254 bad setting, or something else.
And (humour me on this) please enter again from scratch your TSI login settings and confirm that the Tomato router says that you have a successful login.
Any better now ? |
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derekm_anon
@teksavvy.com
| reply to TilhasBB
said by TilhasBB :I removed the DHCP on the Speedtouch modem but now Tomato isn't able to dial in with it. and I am unable to access the modem... any ideas? It looks like you were double nat'd. (i.e. the speedtouch was nat'ing your tomato, which was nat'ing your network - sometimes).
You need to change the speedtouch to bridge mode, and connect it to the WAN port of the linksys.
You then need to enter your PPPoE details into the linksys.
From there, Everything Should Just Work. |
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paulwye
join:2007-02-17
Toronto, ON
·TekSavvy Solutions..
| reply to TilhasBB
Okay, that's just weird. I'm fairly sure that the router doesn't need DHCP to be active on the modem...actually, I don't see how that could EVER work, because you're almost certainly going to have DHCP running on the router, and having two DHCP servers on the same subnet is almost universally going to be a bad idea...did you try power cycling both the second modem and the router?
Second, it's pretty obvious from your posted network config that the reason you can't get anywhere with the initially assigned IP is that the gateway is set to 192.168.1.254--i.e., that address, DNS and gateway were assigned by the second modem, but of course since the modem isn't the device establishing the connection, there's nowhere for the internet traffic to go. So....just to be sure, you've got one modem on the WAN port and the other on one of the four remaining ports, right? What happens when you try to access 10.0.0.138 (the other IP to which the modem should respond)? |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada
1 edit | reply to nigrunze
GOOD CALL!!!!
I completely forgot about the Speedtouch.
I removed the DHCP on the Speedtouch modem but now Tomato isn't able to dial in with it.
and I am unable to access the modem... any ideas? |
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Davesnothere
@teksavvy.com
| reply to nigrunze
said by nigrunze :said by derekm :said by TilhasBB :What i see that is wrong is Default Gateway . . . . . . . . . : 192.168.1.254 DHCP Server . . . . . . . . . . . : 192.168.1.254 DNS Servers . . . . . . . . . . . : 192.168.1.254 Why is that??? I'm coming into this thread a bit late, so forgive me if this has been covered, but *do* you have a second DHCP server somewhere, like another wireless access point or something on your network? When you are assigned a working IP, can you ping 192.168.1.254? (If so, what kind of device is it?) 192.168.1.254 is the IP address for a speedtouch modem. The ST modems have a built-in DHCP server, so you'll need to disable it. EDIT: Assuming you're using an ST516, go to this link and uncheck "DHCP server". You may also need to uncheck "auto IP". Good Point !
I did not think of that as I am from the 'vacuum tube' era of DSL modems, you know, back in the day when if you ASK for a modem, you GET just a modem. - I have 3 of the original Alcatel Speed Touch (spares in case one fails, but like that pink bunny...), and they have never given me an ounce of trouble (though other parts of my network sometimes have).
IMNSHO, those combo units are an extreme nuisance, and Bell often but inconsistently issues them to customers without explaining what they are sending in the dreaded 'Bell Kit'.
If you are correct about your analysis, then shouldn't the Tomato/Linksys Router have been set to a different subnet in the first place (or still could be), in which case, the problem might not happen because the two routers would be properly 'nested' ? (and the Tomato/Linksys itself would then become a DHCP client of the Modem-Router) ?
BTW, I use _._._.254 as a 'Black Hole' to which to forward TCP port #113 on my router, so that GRC.com's 'Shields Up' test cannot notice it. |
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nigrunze
join:2009-02-14
Cote Saint-Luc, QC
1 edit | reply to derekm
said by derekm :said by TilhasBB :What i see that is wrong is Default Gateway . . . . . . . . . : 192.168.1.254 DHCP Server . . . . . . . . . . . : 192.168.1.254 DNS Servers . . . . . . . . . . . : 192.168.1.254 Why is that??? I'm coming into this thread a bit late, so forgive me if this has been covered, but *do* you have a second DHCP server somewhere, like another wireless access point or something on your network? When you are assigned a working IP, can you ping 192.168.1.254? (If so, what kind of device is it?) 192.168.1.254 is the IP address for a speedtouch modem. The ST modems have a built-in DHCP server, so you'll need to disable it.
EDIT: Assuming you're using an ST516, go to this link and uncheck "DHCP server". You may also need to uncheck "auto IP". |
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derekm
join:2008-02-26
·TekSavvy Solutions..
·Rogers Hi-Speed
| reply to TilhasBB
said by TilhasBB :What i see that is wrong is Default Gateway . . . . . . . . . : 192.168.1.254 DHCP Server . . . . . . . . . . . : 192.168.1.254 DNS Servers . . . . . . . . . . . : 192.168.1.254 Why is that??? I'm coming into this thread a bit late, so forgive me if this has been covered, but *do* you have a second DHCP server somewhere, like another wireless access point or something on your network?
When you are assigned a working IP, can you ping 192.168.1.254? (If so, what kind of device is it?) |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada
| reply to Davesnothere
Davesnothere> Thanks for the input.
So your saying DISABLE DHCP and get every computer to get static IP?
I'd rather not do that, when people come over I just want to give them my wireless password.
These are the only two pages with network settings. |
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Davesnothere
@teksavvy.com
| reply to TilhasBB
said by TilhasBB :What i see that is wrong is : Default Gateway . . . . . . . . . : 192.168.1.254 DHCP Server . . . . . . . . . . . : 192.168.1.254 DNS Servers . . . . . . . . . . . : 192.168.1.254 Why is that??? As I said earlier, I do not have any Tomato-specific experience, but let me ask...
Are the problem numbers all a part of 'status' screens, and does Tomato allow you to specify them somewhere on some other screen (as the original Linksys firmware did) ?
If yes to that, then what do you currently have entered in there ?
If blank, then enter the numbers which worked, to force it (hopefully) to use those numbers, and BTW, 192.168.1.1 coincidentally is the factory default IP for a WRT54 router with Linksys firmware.
Alternately, is there any reason why you should not just keep the static local IP (since it works) ?
(Besides, of course not letting the problem win.)
As mentioned earlier, I have always found static local IP's to be more stable, in a lot of ways, and especially when running a PC WIRELESS on a local net.
Hope that is of help... |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada
1 edit | reply to Davesnothere
It happened again...
Boot up NO Internet
Windows IP Configuration
Host Name . . . . . . . . . . . . : ACER-One
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Peer-Peer
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : lan
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Atheros AR5007EG Wireless Network Ad
apter
Physical Address. . . . . . . . . : 00-22-69-84-5A-XX
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.68
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
Lease Obtained. . . . . . . . . . : Wednesday, May 27, 2009 11:55:40 AM
Lease Expires . . . . . . . . . . : Thursday, May 28, 2009 11:55:40 AM
Put Random Static IP in range. it gets static ip, then put it back to automatic. VOILA internet works...
Windows IP Configuration
Host Name . . . . . . . . . . . . : ACER-One
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Peer-Peer
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR5007EG Wireless Network Ad
apter
Physical Address. . . . . . . . . : 00-22-69-84-5A-XX
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.60
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
Lease Obtained. . . . . . . . . . : Wednesday, May 27, 2009 11:58:22 AM
Lease Expires . . . . . . . . . . : Thursday, May 28, 2009 1:18:22 AM
What i see that is wrong is
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
Why is that??? |
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Davesnothere
@teksavvy.com
| reply to TilhasBB
said by TilhasBB :I am having a DHCP problem thats driving me crazy. I seem to be missing something. If you guys can take a look i'd be grateful. When a computer LAN or WIFI tries to log into the internet, It would not work. It would be assigned an IP and can access the router and local network but NOT the internet. If you look at the Device list, Under ethe1, its assigned an IP but the Name is blank and Lease is Blank. Rebooting the machine or router several times does not help. The machine must manually be assigned a different ip, then set to automatic to get internet access. Problem still happens after that's been done a few days later and the same procedure must be repeated. Just one More Thing (Columbo humour) 
I have seen some routers (D-Link DI-524, for one) which can do something in between Static IP and DHCP.
Funny enough, D-Link calls this 'Static DHCP', and it's in the DHCP screen.
What happens is that one one line of the form, you specify to the router the MAC address if the network interface of a particular computer you will be using, and on another line, you specify what valid local IP address to assign to that particular MAC, so that any time the router sees that PC, it gives it that IP.
Maybe the Tomato system does something like that, but only when IT feels like it.
Just one more straw at which to grab... |
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