03-27-2011 12:26 PM - edited 03-04-2019 11:53 AM
Hi,
There was no Internet connection this morning and I looked at the router - the CD light was blinking fast.
Router did not respond to SSH connection and I plugged in the console cable.
sh run had factory default configuration. So I've restored the last running config, but still would not have Internet.
CD light continues to flash frequently and this is what router reports:
#sh dsl int atm0
ATM0
Alcatel 20190 chipset information
Line has not yet been activated.
Modem Status: Down (DMTDSL_DO_OPEN)
DSL Mode: Unknown
Interrupts: 8238 (0 spurious)
PHY Access Err: 0
Activations: 0
LED Status: OFF
LED On Time: 100
LED Off Time: 100
Init FW: init_AMR-4.0.015.bin
Operation FW: AMR-4.0.015.bin
FW Source: external
DSL: Training log buffer capability is not enabled
As of now I am connected thru a combination of SpeedTouch modem and DLink router as a backup.
Is there any way to diagnose what is missing for the DSL connection to be established by 877?
04-11-2011 04:00 PM
Put the DSL modem in bridging mode and then try the following config on your Cisco 877. Let me know it it works out.
!
interface ATM0
no ip address
shutdown
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
description <<< Uplink to DSL Modem >>>
switchport access vlan 2
load-interval 30
!
interface Vlan1
description <<< LAN >>>
ip address 192.168.1.1 255.255.255.0
ip nat enable
ip virtual-reassembly
ip tcp adjust-mss 1452
!
interface Vlan2
description <<< WAN Vlan >>>
no ip address
ip tcp adjust-mss 1452
pppoe enable group global
pppoe-client dial-pool-number 1
!
interface Dialer1
ip address negotiated
no ip redirects
no ip proxy-arp
ip nat enable
ip virtual-reassembly
encapsulation ppp
no ip mroute-cache
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp pap sent-username
!
ip route 0.0.0.0 0.0.0.0 Dialer1
!
ip nat source list natlist interface Dialer1 overload
!
ip access-list extended natlist
permit ip any 192.168.1.0 0.0.0.255
!
05-31-2011 11:42 AM
Since the last post in this thread I've arranged to change the provider and the new provider will install 2x dry
DSL loops. Currently, due to untimely death of 877's modem, I am using a PT-link modem with a software router, which will do load balancing of 2 DLS connections using round-robin algorithm.
Can 877 do that? I can see from the post above that it can create pppoe on one of the Ethernet ports, but can it create 2x pppoe interfaces and round-robin between them? That would be awesome, as the PC I am using is consuming quite some electric power.
Appreciate your help!
05-31-2011 11:49 AM
Yes, with an 877 you should be able to load balanc two ADSL circuits, one to the ADSL interface, the other using an external modem in bridge mode.
05-31-2011 11:58 AM
This thread is entirely about how ADSL interface on the router is DEAD. Passed away. Kicked the bucket.
05-31-2011 09:56 PM
Get a support contract and RMA it.
06-01-2011 06:01 AM
Are you referring to a support contract with Cisco?
Isn't that going to cost me more than to buy another 877? How much does it cost to have contract which would allow RMA of this router?
06-01-2011 06:03 AM
You have to contact a Cisco reseller, however (logically) It does not cost more than the router itself.
06-02-2011 09:46 AM
And without spending any money at all, is it possible to load-balance between two PPPoE interfaces created on the ETH ports of 877? How?
06-02-2011 10:19 AM
06-06-2011 11:17 AM
Those examples, although providing some hints, are quite different in that they load-balance different connections.
06-06-2011 12:51 PM
Those examples, although providing some hints, are quite different in that they load-balance different connections.
That is what you asked before:
is it possible to load-balance between two PPPoE interfaces created on the ETH ports of 877?
Answer: yes as indicated above.
06-07-2011 11:51 AM
In your example one line is DHCP another PPPoE, while in my configuration both lines are PPPoE.
06-08-2011 04:32 AM
Examples cannot cover all possible configuration combinations.
They are there to show and teach you a concept, not give cut and paste solutions.
So in the case above it doesn't matter what type of connection there is.
07-02-2011 08:18 AM
The specific difficulty I am having understanding the examples is that I can't figure what indicates that the following commands are in any way associated with a particular FastEthernet interface. Does IOS somehow figure what interface to create Dialer0 on? How?
Interface Dialer 0
description PPPoX dialer
ip address negotiated
ip nat outside
ip virtual-reassembly
ip tcp adjust-mss
Do I have to create similar section for Dialer1 if I use 2 PPPoE, not 1 PPPoE and 1 DHCP connection?
Do I have to add a line between these two for Dialer1?
ip nat inside source route-map fixed-nat interface Dialer0 overloadip nat inside source route-map dhcp-nat interface FastEthernet0 overload
like this?
ip nat inside source route-map fixed-nat interface Dialer1 overload
Basically, is this a correct configuration for a router with load balancing on 2x PPPoE connections, using 10.10.10.0 network for the LAN?
! interface FastEthernet0no ip address pppoe enable
no cdp enable
!
interface FastEthernet1
no ip address
pppoe enable
no cdp enable
!
interface FastEthernet2
no cdp enable
!
interface Vlan1
description LAN Interface
ip address 10.10.10.1 255.255.255.0
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1452
!---Define LAN-facing interfaces with "ip nat inside".
Interface Dialer 0
description PPPoE dialer for ISP0
ip address negotiated
ip nat outside
ip virtual-reassembly
ip tcp adjust-mss
Interface Dialer 1description PPPoE dialer for ISP1
ip address negotiated
ip nat outside
ip virtual-reassembly
ip tcp adjust-mss
!---Define ISP-facing interfaces with "ip nat outside".
ip route 0.0.0.0 0.0.0.0 dialer 0 track 123
!ip nat inside source route-map fixed-nat interface Dialer0 overload
ip nat inside source route-map fixed-nat interface Dialer1 overload
ip nat inside source route-map dhcp-nat interface FastEthernet0 overload! !--- Configure NAT overload (PAT) in order to use route-maps.!
access-list 110 permit ip 10.10.10.0 0.0.0.255 any
!--- Define ACLs for traffic that are NATed to !--- the ISP connections.!
route-map fixed-nat permit 10
match ip address 110
match interface Dialer0
!
route-map fixed-nat permit 10
match ip address 110
match interface Dialer1
!
07-02-2011 09:31 AM
That's about correct but with some mistakes in the configuration.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide