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New Member

router reboots

Dear sir,

i have a isdn bri backup line for my leased line,

to check whether the backup is working or not, I removed the backup bri isdn from the router and for a few minutes the bri is working after the router gets hanging, then automatically reboots,

it shows error.

Cisco Internetwork Operating System Software

IOS (tm) C1700 Software (C1700-Y-M), Version 12.1(27b), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Tue 16-Aug-05 18:22 by pwade

Image text-base: 0x80008088, data-base: 0x8060B4F8

ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)

082CH.1.BR uptime is 0 minutes

System returned to ROM by error - a SegV exception, PC 0x8014E0FC

System image file is "flash:c1700-y-mz.121-27b.bin"

cisco 1750 (MPC860) processor (revision 0x601) with 12288K/4096K bytes of memory


Processor board ID JAD04400ONI (3667262116), with hardware revision 3097

M860 processor: part number 0, mask 32

Bridging software.

X.25 software, Version 3.0.0.

Basic Rate ISDN software, Version 1.1.

1 FastEthernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

1 ISDN Basic Rate interface(s)

32K bytes of non-volatile configuration memory.

4096K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

New Member

Re: router reboots

Sounds like a software bug.

Re: router reboots

Could not find any reference of software bug.

But if you have spare Cisco 1700 with same IOS, then try to test your BRI on it, without much config.

HTH..rate if helpful..

Hall of Fame Super Silver

Re: router reboots


The error message about:"System returned to ROM by error - a SegV exception, PC 0x8014E0FC" is almost certainly a software error. And the 12.1(27b) code that you are running is pretty old and there have been several vulnerabilities identified to which it might be affected. The best advice is to upgrade the IOS to a more recent version.



New Member

Re: router reboots