Cisco ADSL Help

.Andy

.Andy

.Andy

Associate
Joined
24 Jan 2003
Posts
578
Location
Leeds, UK
I have got a Cisco 877 running the config below. The problem I have is that randomly the ADSL connection drops. The CD light and PPP light both go out. The ATM0 interface goes down but dialer1 stays up.

If I do a sh dsl int atm 0 then the noise margin goes from 6/7db when connected fine to -20 db?

I had been just turning it on and off and it reconnected fine butif left it sometimes reconnects after 10minutes ish.

Any ideas?

sh run:
Code: 
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname teoDSL
!
boot-start-marker
boot-end-marker
!
enable secret 5 ****
!
username **** privilege 15 secret 5 ****
no aaa new-model
ip subnet-zero
ip cef
!
!
ip dhcp excluded-address 192.168.1.1 192.168.1.9
!
ip dhcp pool lan
   network 192.168.1.0 255.255.255.0
   default-router 192.168.1.1
   dns-server 195.92.195.92
!
!
ip domain name teneightyone.com
ip ips po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
interface ATM0
 mtu 1492
 no ip address
 ip nat inside
 ip virtual-reassembly
 no ip route-cache cef
 no ip route-cache
 no ip mroute-cache
 no atm ilmi-keepalive
 pvc 0/16 ilmi
 !
 pvc 0 0/38
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
 !
 dsl operating-mode auto
 dsl enable-training-log
!
interface FastEthernet0
 no ip address
 shutdown
!
interface FastEthernet1
 no ip address
!
interface FastEthernet2
 no ip address
 shutdown
!
interface FastEthernet3
 no ip address
 shutdown
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly
!
interface Dialer0
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 no ip route-cache cef
 no ip route-cache
 no ip mroute-cache
 dialer pool 1
 dialer idle-timeout 0
 keepalive 5
 ppp authentication chap callin
 ppp chap hostname myhostname
 ppp chap password 0 mypassword
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
!
!
ip http server
ip http secure-server
ip nat inside source list 101 interface Dialer0 overload
!
access-list 1 remark VTY ACL
access-list 1 permit 192.168.0.0 0.0.255.255
access-list 101 permit ip 192.168.0.0 0.0.255.255 any
access-list 101 remark NAT ACL
access-list 101 remark NAT ACL
!
!
control-plane
!
!
line con 0
 no modem enable
 transport preferred all
 transport output all
line aux 0
 transport preferred all
 transport output all
line vty 0 4
 access-class 1 in
 login local
 transport preferred all
 transport input all
 transport output all
!
scheduler max-task-time 5000
end

sh ver
Code: 
teoDSL#sh ver
Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version 12.3(8)YI2,
RELEASE SOFTWARE (fc1)
Synched to technology version 12.3(10.3)T2
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 14-Jun-05 18:58 by ealyon

ROM: System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
ROM: Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version 12.3(8)
YI2, RELEASE SOFTWARE (fc1)

teoDSL uptime is 2 hours, 4 minutes
System returned to ROM by power-on
System image file is "flash:c870-advipservicesk9-mz.123-8.YI2.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
[email protected].

Cisco 877 (MPC8272) processor (revision 0x200) with 118784K/12288K bytes of memo
ry.
Processor board ID FHK100153G4
MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10
4 FastEthernet interfaces
1 ATM interface
128K bytes of non-volatile configuration memory.
28672K bytes of processor board System flash (Intel Strataflash)

Configuration register is 0x2102

teoDSL#
 
The 877's supplied ADSL firmware has...issues.
There's a newer firmware on the Cisco site (starts adsl_alc, or just google it) that fixes it.
 
Awesome - I was sure it was something with my config so had been googling things around that.

*goes off to google*
 
Dont have smartnet but I do have 12.14.11 IOS to uograde to at some point.

Upgrading the adsl firmware seems to have resolved the initial post problem - rock solid since i did the upgrade this morning :)

Thanks!

I'll crack on with updating the IOS this evening I think :)
 
You must log in or register to reply here.
Back
Top Bottom