Cisco 800 series ping problem

[burgerp]

I set up a Cisco 800 series router and it worked for one week. Then I lost the link and could not get the router back on line. I can ping the local LAN side but not the Local WAN side. Does that mean the Router is faulty or won't I be able to ping the local WAN side if the link between the routers is faulty.

Thanks.

[omendata]

Which model - have you altered your config file or access lists?

Include a copy of that.

Have you checked that the actual wan is up and running?

Check the router config :-

int fa0/1

Line is up , protocol is down?

or

Line is down , protocol is down?

[burgerp]

It is a Cisco 800 series C805

Whenrunning I receive the following :

00:14:14: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:14:16: %LINK-3-UPDOWN: Interface Serial0, changed state to up
00:16:10: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:16:12: %LINK-3-UPDOWN: Interface Serial0, changed state to up
Router#
Router#
00:20:48: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:20:50: %LINK-3-UPDOWN: Interface Serial0, changed state to up
00:21:58: %PQUICC-3-UNDERFLO: Unit 0, underflow error
00:25:27: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:25:29: %LINK-3-UPDOWN: Interface Serial0, changed state to up
00:26:19: %PQUICC-3-UNDERFLO: Unit 0, underflow error


The configuration is as follow :

Router#show configuration
Using 1150 out of 8076 bytesr disclosure by the Governme
!
! Last configuration change at 05:56:26 UTC Wed Aug 27 2003ct to restrictions as set forth in subparagraph
! NVRAM config last updated at 05:56:32 UTC Wed Aug 27 2003al Computer Software - Restricted
!
version 12.2
R
no service pad FAR sec. 52.2
service timestamps debug uptime
service timestamps log uptimee Rights in Technical Data an
service password-encryption
!
hostname Routerre clause at DF
!S
enable secret 5 $1$uqed$PJGnD3Lc6O/mLLAi2/m1w0

cisco Systems, Inc
enable password 7 00370407164F0A160624 170 West Tasman Drive
!
no ip source-route
!
!
!
!
interface Ethernet005 Software (C805-Y
ip address 10.1.70.1 255.255.255.224YMENT RELEAS
ip access-group 121 in
no ip proxy-arpRE (fc1)
!
interface Serial0echnology version
description RCN
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0
ip http server
!
!
access-list 121 deny udp any eq netbios-dgm any
access-list 121 deny udp any eq netbios-ns any
access-list 121 deny udp any eq netbios-ss any
access-list 121 deny tcp any eq 137 any
access-list 121 deny tcp any eq 138 any
access-list 121 deny tcp any eq 139 any
access-list 121 permit ip any any
!
line con 0
exec-timeout 120 0
stopbits 1
line vty 0 4
exec-timeout 0 0

Thanks

[omendata]

Your ip access list is a bit secureless!!! Its always best to lock a firewall down completely and then open up necessary ports but then again maybe you want it this way - who am i to argue!!!

Config looks ok - the line protocol going up and down like that is symptomatic of a dodgy cable or csu/dsu or router - try replacing the cable and give your isp a call and get them to check the line.

The error is the Ethernet hardware is requesting data faster than the system can supply it. This condition might indicate that the system is at the limit of its performance or faulty - probably the latter if you have ruled out the above cable etc and your router is not used much in terms of bandwidth.

What serial connection are you using - synch or async
Remember async serial must be PPP encapsulation only
Async can be hdlc or ppp.

ie

int s0
encap ppp

[burgerp]

Yes we use async and ppp. I think I see the problem as below.

I went to the Cisco.com site but is not registered to download the software.



Router#reloadD
Proceed with reload? [confirm]NDERFLO: Unit 0, underflow err
WARNING: no valid "boot system" command. TinyROM willk
pick an IOS image to boot.

WARNING: no valid "boot system" command. TinyROM willnit 0, underflow errorerlying
pick an IOS image to boot.

00:03:25: %SYS-5-RELOAD: Reload requested26:34: %LINK-3-UPDOWN: Interface Serial0,

TinyROM version 1.4(1)
19:37 11/07/00

POST ............ OK. 8MB DRAM, 4MB Flash.

Configured boot failed, attempting fallback boot.LINK-3-UPDOWN:
13:28:44:

Booting "c805-y6-mw.122-4.YA2.bin" ...,ed state to down 0.00% 0.00% 0 AAA S
Restricted Rights Legend

Use, duplication, or disclosure by the Government is0: %LINK-3-UPDOWN:
13:28:46
subject to restrictions as set forth in subparagraph up 4000 0.00% 0.00% 0.00% Rk=0x2
(c) of the Commercial Computer Software - Restricted

Last clear
Rights clause at FAR sec. 52.227-19 and subparagraphface Serial0, changed state to up0% 0.00% 0.00%
(c) (1) (ii) of the Rights in Technical Data and Computer
13:44:55: %PQUICC-3-UNDERFLO: Unit

Cisco Internetwork Operating System Software
IOS (tm) C805 Software (C805-Y6-MW), Version 12.2(4)YA2, EARLY DEPLOYMENT RELEAS
E SOFTWARE (fc1)
Synched to technology version 12.2(5.4)T
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 11-Apr-02 15:05 by ealyon
Image text-base: 0x00180000, data-base: 0x0072F000

Cisco C805 (MPC850) processor (revision 0) with 47768K bytes of virtual memory.

Processor board ID JAD070905YE (671657985)
CPU part number 0x2101
Bridging software.
1 Ethernet/IEEE 802.3 interface(s)
1 Serial(sync/async) network interface(s)
8M bytes of physical memory (DRAM)
8K bytes of non-volatile configuration memory
4M bytes of flash on board


--- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]:

[omendata]

Have you tried uploading a new IOS?
Looks like the hardware is duff otherwise.
Might be a faulty memory chip or memory may need reseated

%PQUICC-3-UNDERFLO: Unit [dec], underflow error
Explanation While receiving a frame, the local buffer of the controller chip transmitted insufficient data because the data could not be transferred to DRAM fast enough to keep pace with its input rate. Normally, such a problem is temporary, depending on transient peak loads within the system.

[burgerp]

Thanks, I do not have access to the IOS. I think you are correct to say the problem is the software. I sent it to the suppliers for a reload.