Help with low memory

[robbiedarza]

Hi there, I have 3 cisco 1841 routers and I am trying to setup 'ip nat inside' on a serial interface and I keep getting a memory error.

Ive been stuck for two days, Ive tried it on one of the other routers and its fine, so I swapped the flash card over to this one and its doing the same thing.

Any help would be awesome please, Ive pasted the output below.

Many thanks

Robin

FRANKFURT(config)#int se
FRANKFURT(config)#int serial 0/0/0
FRANKFURT(config-if)#ip na
FRANKFURT(config-if)#ip nat in
FRANKFURT(config-if)#ip nat inside
NBAR ERROR : parsing stopped
% NBAR Error : Activation failed due to insufficient dynamic memory
% NBAR Error: Stile could not add protocol node
%NAT: Error activating CNBAR on the interface Serial0/0/0
FRANKFURT(config-if)#no memory
*Dec 13 23:52:49.587: %SYS-2-MALLOCFAIL: Memory allocation of 10260 bytes failed                                                                                                                                                              from 0x62222FF0, alignment 0
Pool: Processor  Free: 40572  Cause: Memory fragmentation
Alternate Pool: None  Free: 0  Cause: No Alternate pool
 -Process= "Exec", ipl= 0, pid= 28
-Traceback= 62372364z 627C8014z 622204F8z 6222065Cz 62203AB8z 62203BC4z 62203C2C                                                                                                                                                             z 62203C4Cz 62203C4Cz 622044D8z 62201634z 622335A4z 6223F220z 62228A9Cz 6224B954                                                                                                                                                             z 6224BEECz
*Dec 13 23:52:49.591: %NBAR-2-NOMEMORY: No memory available for StILE lmalloc
-Traceback= 6222065Cz 62203AB8z 62203BC4z 62203C2Cz 62203C4Cz 62203C4Cz 622044D8                                                                                                                                                             z 62201634z 622335A4z 6223F220z 62228A9Cz 6224B954z 6224BEECz 618A8334z 618AA844                                                                                                                                                             z 60FEA5C8z
*Dec 13 23:52:50.563: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, chan                                                                                                                                                             ged state to up
FRANKFURT#
*Dec 13 23:53:07.643: %SYS-5-CONFIG_I: Configured from console by console

[robbiedarza]

Ive just attached a screenshot of the two routers, the one with the blue F is the one having the issue, Im guessing it hasnt got enough memory?

Many thanks

Rob

[robbiedarza]

Ive just attached a screenshot of the two routers, the one with the blue F is the one having the issue, Im guessing it hasnt got enough memory?

Many thanks

Rob

[luis_cordova]

Hi,

Can you please post the following output:

R#show version

Regards

[robbiedarza]

Hi many thanks for the reply:

FRANKFURT#show version
Cisco IOS Software, 1841 Software (C1841-BROADBAND-M), Version 15.1(4)M12a, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Tue 04-Oct-16 03:12 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

FRANKFURT uptime is 25 minutes
System returned to ROM by power-on
System image file is "flash:c1841-broadband-mz.151-4.M12a.bin"
Last reload type: Normal Reload

Cisco 1841 (revision 7.0) with 96256K/34816K bytes of memory.
Processor board ID FCZ11409300
2 FastEthernet interfaces
2 Serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
62720K bytes of ATA CompactFlash (Read/Write)

[luis_cordova]

Hi,

The version you have installed needs 128MB of DRAM, and you have only 96MB.

Regards

[Leo Laohoo]

---

@luis_cordova wrote:

The version you have installed needs 128MB of DRAM, and you have only 96MB. 

---

No he doesn't.  The sum of 96256 and 34816 means the router has enough DRAM. 

[Leo Laohoo]

Upgrade the firmware of the router and try again.

[Kasun Bandara]

you can do RAM upgrade. follow below link for guidance.

https://community.cisco.com/t5/switching/upgrade-ram-in-router-cisco-1841/td-p/2913094

[Joseph W. Doherty]

Leo mentions upgrading the software, which may resolve the issue. However, your current configuration might indeed be running the memory low enough, with fragmentation, that memory allocation just fails. The two ways to address that would be to either add RAM or to revise your configuration so that less RAM is used.