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pptp problem with NAT client behind router 7600 Although it has dynamic nat mapping ???!

hi all ,

 

i have router 7604 and  i have many clients and i have dymaic nat , each client will get seperate ip.

 

but i found a non logical issue.

 

althiug each client has seperate ip , none of the clients can do (pptp) to outside servers.

 

i read a bit and found it a bug in some IOS but not sure about 7604 if its infected.

 

the issue also , 

if i remove ip nat outside 

and keep with ip nat inside (((no nat here because no command with ip nat outside )) it still exist !!!!

 

the problem of pptp only solved when i completely remove the commands

 

ip nat inside

ip nat outside fromt the router !!!!

 

 

Gateway7600#sh version 
Cisco IOS Software, c7600s3223_rp Software (c7600s3223_rp-ADVENTERPRISEK9-M), Version 15.2(4)S, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Fri 20-Jul-12 18:18 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)SX3, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, c7600s3223_rp Software (c7600s3223_rp-ADVENTERPRISEK9-M), Version 15.2(4)S, RELEASE SOFTWARE (fc1)

Gateway7600 uptime is 40 weeks, 4 days, 3 hours, 6 minutes
Uptime for this control processor is 3 weeks, 4 days, 3 hours, 6 minutes
System returned to ROM by power-on (SP by power-on)
System image file is "sup-bootdisk:c7600s3223-adventerprisek9-mz.152-4.S.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command

 

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco CISCO7604 (R7000) processor (revision 2.0) with 458752K/65536K bytes of memory.
Processor board ID FOX1509G2DK
R7000 CPU at 300MHz, Implementation 39, Rev 3.3, 256KB L2, 1024KB L3 Cache
Last reset from power-on
1 Virtual Ethernet interface
9 Gigabit Ethernet interfaces
1915K bytes of non-volatile configuration memory.

65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102

 

wish to help regards

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