08-18-2008 08:49 AM - edited 03-03-2019 11:10 PM
I have a new Point to Point Cleas DS3 circuit which will terminate at both ends in a 3845, what would be the appropriate modules for such a circuit in a 3845
08-18-2008 09:01 AM
NM-1T3/E3
Hope that helps.
08-20-2008 09:15 AM
Yes Sir
That is a big help That was my choice, But I am not a Cisco Guy, However I have been asked to wear several hats now. I have some Cisco Experience nad recieved a CCNA in 2000 (But I moved over to become a SAN guy). I would like to ask one other question. If I have a point to point DS3 which is mine alone and I terminate each end with a 3845, Plus the ohter end is only one VLAN worth of traffic and One end is a port on a firewall. Could I configure the 3845 minimally to route with the default route and at my firewall, route that traffic to where it needs to go (internal LAN) and what would that config look like
08-20-2008 09:23 AM
Sure you can do that. On the remote end router you would have a route that would point to either the head end routers IP on the DS3 interface
ip route 0.0.0.0 0.0.0.0 [head end router IP on the ds3]
or since it's a point-to-point connection, you could use the interface to route
ip route 0.0.0.0 0.0.0.0 serial0
In your internal network, you'll need a static route for the remote network pointing to the firewall and in the firewall you'll need a route pointing to the DS3 router. Depending on the config of the DS3 router, you may need a route for the remote network and the corporate (or default) network.
08-21-2008 06:54 AM
Hi Collin
Thanks again, I thought that was what I wnted, But I always like to ask someone else, Also I went down to my remote site where one of the new CKT's is and I was shocked to discover my cable has two BNC connectors, So I will have to make sure I order the right Module
08-21-2008 07:06 AM
Scott,
The NM-1T3/E3 uses coaxial BNC connectors. You won't have a problem with ordering the wrong card that has different connectors. See the data sheet for more details
Mark
08-21-2008 11:58 AM
Yes Sir
I see that, Well that is a relief. I think I originally looked at the wrong card...Thanks again
08-25-2008 09:00 AM
Good day Gemtlemen and Cisco Guru's
I have two 7206's that I am trying to just get to route traffic on a T1 connection between the two. It is a point-to-point and I have one ethernet connection on each end, with an IP address asigned on the LAN facing side and T1 Controllers cards on the WAN facing side. Do I need to configure the Controller T1 ports in anyway except assigning an IP and assigning default routes on the 7206's
08-25-2008 09:13 AM
Maybe! Typically the default linecode and framing are OK in the US, but for reference, here they are-
framing esf
linecode b8zs
You may also have to set the clock source-
clock source internal
You should also set the timeslots-
channel-group 0 timeslots 1-24
All of the above are set under the controller interface.
If you want to use PPP instead of the default HDLC, you'll need to set that too (under the serial interface)
encapsulation ppp
Hope that helps.
08-25-2008 09:28 AM
What is the difference or perhaps the pros and cons to useing either HDLC or PPP? and yes, Your input is extremely helpful
08-25-2008 09:31 AM
PPP give you things like authentication & bundling. I suggest you use PPP, but it will work just fine with HDLC too.
08-25-2008 10:13 AM
I will definetly take your advice and USE PPP, And one last Question( if I direct connect the T1 ports on my routers ( I have them on my bench just rtying to get link) Should I see a link light and will they pass traffic that way just for testing?
08-25-2008 10:38 AM
You should get a green CD light at a minimum. To pass traffic you will need to configure the controllers. Once they are configured correctly, layer 2 traffic (ie CDP) traffic should pass.
08-25-2008 12:40 PM
Hey Collin (and whoever else wants to spoon feed me..)
I am just going to post these two config files and let you tell me where I am wrong, I am NOT getting a link light for some reason
ROUTER 1
Building configuration...
Current configuration : 1406 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ORLND7206001
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$K6fv$0V2u3dLrVF1aS1rhq2RFM1
!
no aaa new-model
ip subnet-zero
!
!
!
ip cef
!
!
!
!
!
!
!
!
!
!
!
!
controller T1 2/0
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 2/1
framing esf
linecode b8zs
!
!
!interface GigabitEthernet0/1
description **Scottsdale_Orlando Gateway**
ip address 10.20.40.1 255.255.255.0
duplex auto
speed auto
media-type rj45
no negotiation auto
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
media-type rj45
no negotiation auto
!
interface GigabitEthernet0/3
no ip address
shutdown
duplex auto
speed auto
media-type rj45
no negotiation auto
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/0:0
ip address 10.10.20.1 255.255.255.254
encapsulation ppp
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.20.2
no ip http server
!
!
!
!
!
!
!
!
!
gatekeeper
shutdown
!
!
line con 0
stopbits 1
line aux 0
line vty 0 4
!
!
end
ORLND7206001#
Router 2
Building configuration...
Current configuration : 1396 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ORLND7206002
!
boot-start-marker
boot-end-marker
!
enable password Supp0rt@EM
!
no aaa new-model
ip subnet-zero
!
!
!
ip cef
!
!
!
!
!
!
!
!
!
!
!
controller T1 2/0
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24
!
controller T1 2/1
framing esf
linecode b8zs
!
!
!interface GigabitEthernet0/1
description **Scottsdale_Orlando Gateway**
ip address 10.20.40.3 255.255.255.0
shutdown
duplex auto
speed auto
media-type rj45
no negotiation auto
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
media-type rj45
no negotiation auto
!
interface GigabitEthernet0/3
no ip address
shutdown
duplex auto
speed auto
media-type rj45
no negotiation auto
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/0:0
ip address 10.10.20.2 255.255.255.254
encapsulation ppp
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.20.1
no ip http server
!
!
!
!
!
!
!
!
!
gatekeeper
shutdown
!
!
line con 0
stopbits 1
line aux 0
line vty 0 4
end
ORLND7206002#
!
!
08-25-2008 12:53 PM
If you are not getting a green CD light on the card, you have a physical layer problem (ie cabling). You should have a regular RJ-45, straight-thru patch cord from the smartjack to the serial port on the router. Is that what you have? If so, do you have any green lights on the smartjack when the router is plugged in?
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