Hello,
Soon, I will need to setup a t1 line between 2 sites. I have purchased 2 Cisco 1841 routers with the T1 DSU/CSU card in slot 0 (WIC 1DSU-T1 V2).
Anyway, I think I have everything working properly back to back, but I'm running into a weird problem where one side (config A) can only ping the other side 60% of the time, and the other side (config B) can not ping config A at all. Below are my configurations. Can anybody tell me what I'm doing wrong? This is going to be my first T1 deployment, and it has to work. Thanks:
Config A:
yourname#show run
Building configuration...
Current configuration : 2044 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
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 dhcp use vrf connected
!
!
ip domain name yourdomain.com
!
username cisco privilege 15 secret 5 $1$uF6w$fMy7xMIp2BRaJMSi214EM/
!
!
!
interface FastEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
ip address 10.10.0.1 255.255.0.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
ip unnumbered FastEthernet0/0
encapsulation ppp
!
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
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 ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device.
This feature requires the one-time use of the username "cisco"
with the password "cisco". The default username and password have a privilege le
vel of 15.
Please change these publicly known initial credentials using SDM or the IOS CLI.
Here are the Cisco IOS commands.
username privilege 15 secret 0
no username cisco
Replace and with the username and password you want to use
.
For more information about SDM please follow the instructions in the QUICK START
GUIDE for your router or go to
-----------------------------------------------------------------------
^C
!
line con 0
exec-timeout 0 0
login local
line aux 0
line vty 0 4
access-class 23 in
privilege level 15
login local
transport input telnet
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet
!
end
config B:
yourname#show run
Building configuration...
Current configuration : 2093 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
mmi polling-inter
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
ip domain name yourdomain.com
!
username p1admins privilege 15 secret 5 $1$nAL8$hheCXtA4rN6.RosXTheFz0
!
!
!
interface FastEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
ip address 10.10.10.2 255.255.255.248
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
ip unnumbered FastEthernet0/0
encapsulation ppp
service-module t1 clock source internal
!
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
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 ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device.
This feature requires the one-time use of the username "cisco"
with the password "cisco". The default username an
vel of 15.----------
Please change these publicly known initial credentials using SDM or the IOS CLI.
Cisco Router and Security Device Manag
Here are the Cisco IOS commands.ce.
username privilege 15 secret 0 ture requires the one-time use of the username "cisco
no username cisco
Replace and with the username and password you want to useassword have a privilege le
.
For more information about SDM please follow the instructions in the QUICK START
GUIDE for your router or go to
-----------------------------------------------------------------------
^C
!
line con 0
exec-timeout 0 0
login local
line aux 0
line vty 0 4
access-class 23 in
privilege level 15
login local
transport input telnet
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet
!
end
Right now both routers are configured back to back. Thanks.
-- John