Solved: I dont understand why router

Dave999100 · ‎02-03-2015

Hi all!

I want configure NAT on my interfaces.

When i execute command ip nat inside on interface GigabitEthernet0/0 my router automatically reboot

(config)#interface GigabitEthernet0/0

(config-if)#ip nat inside

Interface info:

GigabitEthernet0/0 is up, line protocol is up
Hardware is CN Gigabit Ethernet, address is <mac>
Description: eth0
Internet address is <IP>
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 100Mbps, media type is RJ45
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 1/75/2/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 301000 bits/sec, 300 packets/sec
5 minute output rate 288000 bits/sec, 298 packets/sec
6997579 packets input, 1243498761 bytes, 0 no buffer
Received 356633 broadcasts (0 IP multicasts)
0 runts, 0 giants, 1 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 4505 multicast, 0 pause input
6871471 packets output, 1217202137 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
3076 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

I dont understand why router is rebooting . Maybe in my configuration something wrong

Leo Laohoo · ‎02-04-2015

Yup. Software-caused crash. You can open a TAC Case and get TAC to decipher what is causing the crash or you can just upgrade the IOS to another "M" train.

View solution in original post

Leo Laohoo · ‎02-04-2015

I dont understand why router is rebooting . Maybe in my configuration something  wrong

It means you've triggered a bug.

Check your IOS. If the router is running a "T" train, then consider upgrading to a more stable "M" train.

Dave999100 · ‎02-04-2015

Hi, thanks for your response

I have more stable version :

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9_NPE-M), Version 15.3(3)M

In my situation only IOS upgrade can helps me?

Leo Laohoo · ‎02-04-2015

In my situation only IOS upgrade can helps me?

Yes. Another thing, can you post the output to the following commands:

1. sh version; and

2. dir

Dave999100 · ‎02-04-2015

sh version and dir output in attachment

I see new files named in time when router is reboot crashinfo_20150203-092941-Russia.

Errors in file crashinfo_20150203-092941-Russia :

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------

-Traceback= 0x30D39C04z 0x30D38AA0z 0x30D1DD48z 0x30D1E2B4z 0x30D1F1D4z 0x3320A150z 0x3301A1C8z 0x3301AC44z 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz
$0 : 00000000 00000000, AT : 00000000 3ADE0000, v0 : 00000000 37D40000, v1 : 00000000 00000000
a0 : 00000000 22169510, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 00000C28
t0 : 00000000 30D5C9A8, t1 : 00000000 50009FE1, t2 : 00000000 30D5C9A8, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30D5C9A8, t5 : 63657373 2072756E, t6 : 6E696E67 206C6F77, t7 : 2C20302F 31323030
s0 : 00000000 00000000, s1 : 00000000 00000000, s2 : 00000000 39A80000, s3 : 00000000 39E90000
s4 : 00000000 39E90000, s5 : 00000000 39A80000, s6 : 00000000 3DD0FB10, s7 : 00000000 39E90000
t8 : 00000000 00000000, t9 : 00000000 30D55998, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3ADE3480, sp : 00000000 3DD0E248, s8 : 00000000 3DD0FB10, ra : 00000000 30D439A0
EPC : 30D44B04, ErrorEPC : 80412BC4, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000001, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00007F98, CacheErr_Dcache : 0x00000000 - 00002930
TagLo_Icache : 0x00000000 - 30D59E03, DataLo_Icache : 0x0128502A - 11400003
DataHi_Icache: 0x00000000 - 00000001
TagLo_Dcache : 0x00000000 - 22169503, TagHi_Dcache : 0x00000004 - 1ADDB601
DataLo_Dcache: 0x0D314D78 - 00000000, DataHi_Dcache : 0x00000000 - 000000C0
TEXT_START : 0x3000B868
DATA_START : 0x36430F00
Cause 00000024 (Code 0x9): Breakpoint exception

09:29:41 Russia Tue Feb 3 2015: Breakpoint exception, CPU signal 23, PC = 0x30D44B04

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------

-Traceback= 0x30D39C04z 0x30D38AA0z 0x30D1DD48z 0x30D1E2B4z 0x30D1F1D4z 0x3320A150z 0x3301A1C8z 0x3301AC44z 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz
$0 : 00000000 00000000, AT : 00000000 3ADE0000, v0 : 00000000 37D40000, v1 : 00000000 00000000
a0 : 00000000 22169510, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 00000C28
t0 : 00000000 30D5C9A8, t1 : 00000000 50009FE1, t2 : 00000000 30D5C9A8, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30D5C9A8, t5 : 63657373 2072756E, t6 : 6E696E67 206C6F77, t7 : 2C20302F 31323030
s0 : 00000000 00000000, s1 : 00000000 00000000, s2 : 00000000 39A80000, s3 : 00000000 39E90000
s4 : 00000000 39E90000, s5 : 00000000 39A80000, s6 : 00000000 3DD0FB10, s7 : 00000000 39E90000
t8 : 00000000 00000000, t9 : 00000000 30D55998, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3ADE3480, sp : 00000000 3DD0E248, s8 : 00000000 3DD0FB10, ra : 00000000 30D439A0
EPC : 30D44B04, ErrorEPC : 80412BC4, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000001, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00007F98, CacheErr_Dcache : 0x00000000 - 00002930
TagLo_Icache : 0x00000000 - 30D59E03, DataLo_Icache : 0x0128502A - 11400003
DataHi_Icache: 0x00000000 - 00000001
TagLo_Dcache : 0x00000000 - 22169503, TagHi_Dcache : 0x00000004 - 1ADDB601
DataLo_Dcache: 0x0D314D78 - 00000000, DataHi_Dcache : 0x00000000 - 000000C0
TEXT_START : 0x3000B868
DATA_START : 0x36430F00
Cause 00000024 (Code 0x9): Breakpoint exception

Writing crashinfo to flash:crashinfo_20150203-092941-Russia

09:29:41 Russia Tue Feb 3 2015: Breakpoint exception, CPU signal 23, PC = 0x30D44B04

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------

-Traceback= 0x30D39C04z 0x30D38AA0z 0x30D1DD48z 0x30D1E2B4z 0x30D1F1D4z 0x3320A150z 0x3301A1C8z 0x3301AC44z 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz
$0 : 00000000 00000000, AT : 00000000 3ADE0000, v0 : 00000000 37D40000, v1 : 00000000 00000000
a0 : 00000000 22169510, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 00000C28
t0 : 00000000 30D5C9A8, t1 : 00000000 50009FE1, t2 : 00000000 30D5C9A8, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30D5C9A8, t5 : 63657373 2072756E, t6 : 6E696E67 206C6F77, t7 : 2C20302F 31323030
s0 : 00000000 00000000, s1 : 00000000 00000000, s2 : 00000000 39A80000, s3 : 00000000 39E90000
s4 : 00000000 39E90000, s5 : 00000000 39A80000, s6 : 00000000 3DD0FB10, s7 : 00000000 39E90000
t8 : 00000000 00000000, t9 : 00000000 30D55998, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3ADE3480, sp : 00000000 3DD0E248, s8 : 00000000 3DD0FB10, ra : 00000000 30D439A0
EPC : 30D44B04, ErrorEPC : 80412BC4, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000001, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00007F98, CacheErr_Dcache : 0x00000000 - 00002930
TagLo_Icache : 0x00000000 - 30D59E03, DataLo_Icache : 0x0128502A - 11400003
DataHi_Icache: 0x00000000 - 00000001

TagLo_Dcache : 0x00000000 - 22169503, TagHi_Dcache : 0x00000004 - 1ADDB601
DataLo_Dcache: 0x0D314D78 - 00000000, DataHi_Dcache : 0x00000000 - 000000C0
TEXT_START : 0x3000B868
DATA_START : 0x36430F00
Cause 00000024 (Code 0x9): Breakpoint exception

-Traceback= 0x30D39C04z 0x30D38AA0z 0x30D1DD48z 0x30D1E2B4z 0x30D1F1D4z 0x3320A150z 0x3301A1C8z 0x3301AC44z 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz 0x3301AC3Cz

09:29:41 Russia Tue Feb 3 2015: Address Error (load or instruction fetch) exception, CPU signal 10, PC = 0x33208494

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------

-Traceback= 0x331FD594z 0x33206090z 0x332093C8z 0x30D1ED7Cz 0x30D38650z 0x30D3CCFCz 0x30D50C48z
$0 : 00000000 00000000, AT : 00000000 00000024, v0 : 00000000 00000007, v1 : 00000000 00000000
a0 : 00000000 00000004, a1 : 00000000 210956A8, a2 : 00000000 21095698, a3 : 00000000 00000000
t0 : 00000000 00000020, t1 : 00000000 00000038, t2 : 00000000 00000000, t3 : 00000000 30D5C9E0
t4 : 00000000 30D5C9A8, t5 : 00000000 3DD0FB10, t6 : 00000000 00000000, t7 : 00000000 30D439A0
s0 : 00000000 0B0D0B0D, s1 : 00000000 210956C4, s2 : 00000000 00000007, s3 : 00000000 244A974C
s4 : 00000000 210956C4, s5 : 00000000 3ADE0000, s6 : 00000000 00000000, s7 : 00000000 39E90000
t8 : 00000000 39A8A1D0, t9 : 00000000 31924754, k0 : 00000000 3B3BE398, k1 : 00000000 00000000
gp : 00000000 3ADE3480, sp : 00000000 39A8A238, s8 : 00000000 3DD0FB10, ra : 00000000 3320847C
EPC : 33208494, ErrorEPC : 80412BC4, SREG : 500080E3
MDLO : 00000000, MDHI : 00000003, BadVaddr : 0B0D0B0D
CacheErr_Icache : 0x007F7F00 - 00007F98, CacheErr_Dcache : 0x00000000 - 00002330
TagLo_Icache : 0x00000000 - 331D3E03, DataLo_Icache : 0x3C02FC00 - 8E040000
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 22111D03, TagHi_Dcache : 0x00000004 - 1ADDB601
DataLo_Dcache: 0x00000004 - 00000000, DataHi_Dcache : 0x00000000 - 00000010
TEXT_START : 0x3000B868
DATA_START : 0x36430F00
Cause 00000410 (Code 0x4): Address Error (load or instruction fetch) exception

Leo Laohoo · ‎02-04-2015

Yup. Software-caused crash. You can open a TAC Case and get TAC to decipher what is causing the crash or you can just upgrade the IOS to another "M" train.

Dave999100 · ‎02-05-2015

OK i try upgrade my IOS. Thanks for your help!

cisco 2921 auto reboot