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New Member

Cisco IOS Interface Blocked by IPv4 Packets

Hi,

Is my router affected by the recent Cisco IOS vulnerability?

Below is the show version of my router.

------------------ show version ------------------

Cisco Internetwork Operating System Software

IOS (tm) RSP Software (RSP-DSV-M), Version 11.2(12a), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-1998 by cisco Systems, Inc.

Compiled Sat 14-Mar-98 10:58 by tlane

Image text-base: 0x600108A0, data-base: 0x609EA000

ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE

BOOTFLASH: GS Software (RSP-BOOT-M), Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

[RouterName] uptime is 11 weeks, 1 day, 18 hours, 43 minutes

System restarted by power-on

System image file is "slot0:rsp-dsv-mz.112-12a", booted via slot0

cisco RSP1 (R4600) processor with 65536K bytes of memory.

R4700 processor, Implementation 33, Revision 1.0

Last reset from power-on

G.703/E1 software, Version 1.0.

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

Chassis Interface.

1 FSIP controller (4 Serial).

1 AIP controller (1 ATM).

1 TRIP controller (2 Token Ring).

2 Token Ring/IEEE 802.5 interface(s)

4 Serial network interface(s)

1 ATM network interface(s)

125K bytes of non-volatile configuration memory.

3 REPLIES
New Member

Re: Cisco IOS Interface Blocked by IPv4 Packets

Hi Lye,

yes, your posted IOS is affected.

Look at http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml

For fixing this problem, you need 11.2(26e).

But unfortunately this is a very old code, so you cannot download a new image from cco, you have to contact the TAC.

Regards

Stefan

New Member

Re: Cisco IOS Interface Blocked by IPv4 Packets

hi stefan,

so will downgrade of ISO affect my network or router.

Thanks

Bronze

Re: Cisco IOS Interface Blocked by IPv4 Packets

Hi,

According to your "sh ver", your router might be 7500 series, then why cann't you upgrade to latest version 12.3.

Ashok.

With best regards... Ashok ----------- Pls kindly rate if helpful or answered your question.
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