Limo.Net Internet Services FAQS

CBOS Commands for DSL on Cisco 675

Note: Bridging Mode Only Needs "set bridged enable" to configure.

Warning: A few mistyped commands can ruin the CBOS operating system.

Please refer to your ISP's DSL department if you need help. This is the most difficult DSL router to configure.

General Notes:

These routers tend to run a bit hot. It is best to point a fan at them and make sure that they have a lot of ventilation. This is especially important if you run them around the clock. If they overheat then they will appear to be functioning but they will start acting up. Unplug it and let it cool down.

You will need hyperterminal installed. (Control Panel -> Add/Remove Programs -> Windows Setup -> Communications -> checkmark Hyperterminal -> Apply). You will also need Client For Microsoft Networks installed.

The Commander software is optional. Switch away from the yellow cable if they are using it and can't surf.

Make sure that DNS is enabled and DHCP is disabled.

Each of the workstations on your network must have a unique IP address.
You must follow the format below:

IP address: 10.0.0.X (where x is a unique number between 2 and 254)
Subnet Mask: 255.255.255.0 (bridging mode)
Gateway: 10.0.0.1 (bridging mode)
DNS addresses: 209.210.176.8, 209.210.176.9

Note: PPP mode will not need a gateway or subnet mask.

In the event that you will have to reset anything then you will want to erase everything in the NVRAM. To do that enter the following:

set nvram erase
write
reboot

Switching Modes: PPP <-> Bridging

[Note: The default mode will usually be specified on a sticker on the bottom of the router.]

CBOS 2.0.2 Commands:

set nvram erase
write
reboot

[continue after reboot at cbos#]

set bridging rfc1483 enabled

set bridging rfc1483 management enabled

write

reboot

CBOS 2.2.0 Commands:

Enable

Set nvram erase

write

reboot

[continue after reboot]

enable

set bridging rfc1483 enabled

set bridging management enabled

write

reboot

CBOS Version 2.0.2

[Note: The CBOS version will be on a sticker on the bottom of the router. The bridging/ppp mode will usually be specified there as well.]

enable
set nvram erase
write
reboot

set ppp wan0-0 pap disable
set ppp wan0-0 ipcp <their IP>
set int wan0-0 close
set int wan0-0 dest <their gateway>
set int wan0-0 mask <their mask>
set int eth0 address 10.0.0.1
set int eth0 mask <their subnet mask such as 255.255.255.0>
write
reboot

enable
set nat enable
write
reboot

<next: CBOS 2.2.0> <return to top for more options>

CBOS Version 2.2.0

[Note: The CBOS version will be on a sticker on the bottom of the router. The bridging/ppp mode will usually be specified there as well.]

enable
set nvram erase
write
reboot

set ppp wan0-0 auth disable
set ppp wan0-0 ipcp <their IP>
set password exec cisco
set nat enable
write
reboot

<next: configuring multiple IP addresses> <return to top for more options>

Configuring The Cisco 675 With PPP For Multiple IP Addresses

Login to cbos and enable

set nvram erase
write
reboot

login to cbos and enable

set wan0-0 authentication disable
set password exec cisco
set int eth0 address <their 1st IP address>
set int eth0 mask <their subnet mask>
set nat enable
write
reboot

If you have a range of IPs such as 216.126.197.113 - 216.126.197.118 then 216.126.197.113 would be the IP address assigned to the router. It will also be the default gateway assigned to all machines.

cbos#show interface
IP Address Mask
eth0 216.126.197.113 255.255.255.248

vip0 0.0.0.0 255.255.255.0

vip1 0.0.0.0 255.255.255.0

vip2 0.0.0.0 255.255.255.0

wan0 Physical Port: Trained

Dest IP Address Mask
wan0-0 216.126.202.1 255.255.255.255

DNS configuration will remain the same as a normal setup (our DNS numbers and info).

IP addresses will be from the assigned pool of addresses.

<next: ICQ quirks> <return to top for more options>

ICQ Quirks

If you are using PPP increase your UDP timeout to 360 sec.

enable

set nat timeout udp 360