Clock source I mean. On the t1/E1 controller.
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Question
Setting up a Cisco 1841 Point to Point T1
I'm trying to set up a point to point t1 between two new Cisco 1841's.
I've got my own CSU's and no alarm lights are showing. The T1 seems happy.
I can't seem to get traffic to pass between the two routers though. Here is my config from router #1 and router #2 is exactly the same other than the IP addresses.
Building configuration...
Current configuration : 3210 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ROUTER1
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
!
!
no ip domain lookup
ip domain name yourdomain.com
!
!
!
crypto pki trustpoint TP-self-signed-2067130655
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certifi
revocation-check none
rsakeypair TP-self-signed-2067130655
!
!
crypto pki certificate chain TP-self-signed-2067130655
certificate self-signed 01
30820259 308201C2 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
-removed to keep it small -
8F281C80 2DDEF9E8 84C20F99 4EFFB6C4 1D0244B2 5A45E212 0AD52AEE 0C373AE7
C447A323 D75318BE E1F47D27 33D02387 C986888B 0008BAE2 A8C9C2C4 91C5905A
EF756714 582D605F 71ABE95A C0618246 C909D8CB 08A8EA56 4FE2CCC5 CAF7E60E
5820CF5C B53BBE6E 385908DE 04B13214 2CC0B1F3 6F1E7297 47948386 5B
quit
username admin privilege 15 secret 5 $1$L4z7$t66WmDO8f1XjsREu0
!
!
!
!
!
interface FastEthernet0/0
description Ethernet port for xxx LAN
ip address 192.168.1.2 255.255.255.0
speed 100
full-duplex
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1/0
description Verizon P2P to XXXX
bandwidth 1536
ip address 10.160.26.1 255.255.255.252
encapsulation ppp
no fair-queue
!
interface Serial0/1/1
no ip address
shutdown
clock rate 2000000
!
ip default-gateway 10.160.26.2
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
access-list 23 permit 10.10.10.0 0.0.0.7
!
!
control-plane
!
banner login ^CC
Unauthorized Access is not permitted!!! ^C
!
line con 0
login local
line aux 0
line vty 0 4
privilege level 15
password smcrules!!!
login local
transport input telnet ssh
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet ssh
!
end
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Answers
Try to ping from one router to the other
Ping 10.160.26.2 source 10.160.26.1
If this works then you need to configure routes for traffic. I see you set a default gateway but that will only be used for traffic generated by the router itself. You may want to set a gateway of last resort instead.
ip route 0.0.0.0 0.0.0.0 10.160.26.2
Hope this helps
B
Thanks for the information regarding the gateway of last resort! I didn't know that... good thign you told me or I'd be wondering why I couldn't pass traffic :P
As for pinging the line protocol won't stay up long enough to ping... on this side it goes up and down and on the other it doesn't even go up.
*Nov 27 18:13:37.344: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1/
0, changed state to down
*Nov 27 18:13:47.344: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1/
0, changed state to up
For more detais see....
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I would put the equipment in a lab and test my configuration there. You can connect the csu's back to back with a t1 crossover cable and set up all routing. Then if you have problems on site you can narrow it down pretty quickly to a problem with the wiring or the telco.
http://www2.adtran.com/sup
Hope this helps
B
Thats a great solution bfason, I tried that and it seemed be the solution. After following the link you provided I was able to make a T1 crossover cable and bring the equipment back from both locations and connect them toghether with the T1 crossover cable.
After testing everthing and swapping the Cisco Serial cards between the two routers I found that one card always did UP UP, then UP DOWN, repeatedly so I believe its that new serial card.
I"m in the process of doing an RMA today.
THANKS FOR YOUR HELP!
Can anyone take a look on my question :) Thanks in advance...
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by: bhnmiPosted on 2007-11-21 at 11:30:15ID: 20330356
Need to set the clock rate to internal on the p2p link.