Home-network With Huawei Smartax Mt880 And Linksys Wrt54gl

[Rossi]

Hey guys,

I hope to find some network gurus here...

I have an internet acces from True. Today I applied for the faster 8MBit-Service which will be activated tomorow (hopefully).

Until now I was using the Huawei SmartAX MT880 Modem/Router to connect my computer. As my wife has bought a Netbook, I decided to buy a Linksys WRT54GL Wifi-Router to connect all devices to the internet.

The Linksys seems to be very powerful, so I think it makes most sense to use the router of this machine rather than the one in the Huawei.

I logged into the MT880 and saw, that it was already set to full bridged mode. The IP was set to 192.168.1.1. DHCP was turned on. I switched DHCP off as I think it would be better to assign this task to the WRT54GL and connected the MT880's LAN port to the WRT54GL's WAN port.

I changed the WRT54GL firmware and loaded Tomato 1.25. Then I changed the WRT54GL IP to 192.168.1.2 and turned DHCP on. Then I activate the PPPoE Mode and entered my username and password.

Finally I got the internet working fine on my computer as well as on the netbook.

Now I need some help, as I don't understand some things:

1) I can't reach or ping the MT880 with the IP 192.168.1.1. Is this normal? In that way I can never check or change the configuration without plugging out some cables...

2) If I use the MT880 in Bridged mode it is actually working as ethernet bridge on OSI Level 2, right? If this is true, I could deactivate IGMP, NAT, Firewall and the Filtering, as all this functionalities must be part of the router on OSI Level 3, correct? I wonder why this is all activated by True, if they don't use the Router functionality!

3) Do the Modem and the Router get different IP like in my case if they are located within 1 device? I never experienced that there were some kind of "reserved" IP's when installing such devices.

It would be great if someone could give me a hint.

Mike

[thaimite]

What port are you plugged in to with the MT880. You should use the WAN port so must use one of the normalprts

[anothertorres]

it's always good to have 1.1 available. let me ask you. why are you set in Full Bridged Mode? you don't need to do that. set your WAN settings on the MT880 to this:

PVC: 0

VPI: 0

VCI: 33

Active: Yes

Mode: Routing

Encapsulation: PPPoA

Multiplex: LLC

set your DHCP settings on the MT880 to this:

Client IP Pool Starting Address 192.168.1.2.

that way, when your WRT boots up from default, it's not trying to be 192.168.1.1 also. now you should have 1.1 and 1.2 both open to you. sup?

EDIT:

what i forgot to tell you to do was hard reset both the MT880 and WRT. then power them both down. then connect directly from your computer to the MT880 and hit up your admin at 1.1.

[Supernova]

1) I can't reach or ping the MT880 with the IP 192.168.1.1. Is this normal? In that way I can never check or change the configuration without plugging out some cables...

Disabling DHCP on the MT880 will render it inaccessible. Try manually assigning your computer a static IP in the same subnet as the MT880, 192.168.1.xxx. If you still can't ping or access the MT880, do a hard reset. Then re-configure the MT880 as a bridge with DHCP enabled.

[Rossi]

thanks for you ideas. I got it working now. I had to add some lines to the wrt config and now i can access the modem.

Still I'm not sure, if I can disable IGMP, NAT, IP-Filtering, Firewall,... i think I will give it a try.