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Core issueThe issue issue is documented in Cisco bug ID CSCei50549.This happens when a PIX Firewall is upgraded from version 6.x (four-tuple key version) to version 7.x (five-tuple key version) and is used in failover mode with another similar PIX de...

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Core issueThis issue occurs due to the presence of Cisco bug ID CSCeh84997.While a database replication is performed on a CiscoSecure ACS for Windows or a CiscoSecure ACS Solution Engine, the ACS server or ACS Solution Engine can generate this error ...

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Core issueIn Firewall Services Module (FWSM), the modification of an access control list (ACL) that contains object-groups leads to misordered ACL rules. In other words, the order of access control entries (ACEs) becomes corrupted.As a result, the pa...

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Core issueOnce a user logs into Citrix, they should not be prompted for another login for any published application. However, if the administartor disables auto-signon on the ASA with Citrix pass-through, then the user has to login three times: ...

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Core issueAuthentication for users might fail on the VPN Concentrator while using the Active directory (AD) controller,The VPN Concentrator throws out the error shown below,%AUTH-4-5: RPT=267: Authentication rejected: Reason = Unspecified handleResol...

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Introduction:  Introduction:This document dicuss an issue faced by an user Different modes available in router:In Cisco every command mode enables user with a set of related commands.Cisco CLI has two modes:-User modePrivileged mode In oder to provid...

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Core issueThis issue can occur due to the presence of Cisco bug ID CSCeh84289.ResolutionFor a workaround:Refer to Cisco Downloads in order to download and install any of these FWSM software version or the latest versions: 3.1(4)    3.2(0.11)    3.1(3...

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Core issueIf the debug crypto isakmp command shows the "reserve not zero on payload 5!" error message, there is a pre-shared keys mismatch.To confirm use command "show crypto isakmp sa". if the output displays "MM_Key_exchange" ,it mean's that phase ...

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Core issueThis %PIX|ASA-4-419001: Dropping TCP packet from src_ifc:src_IP/src_port to dest_ifc:dest_IP/dest_port, reason: MSS exceeded, MSS size, data size error message is generated when the length of the TCP packet exceeds the Maximum Segment Size ...

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Core issueThis issue is due to presence of Cisco bug ID CSCeh13105.In this issue while you create new Microsoft Windows Database mapping in ACS, after the selection of the groups from a list, assign them to some groups in ACS and submit. The result i...

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ResolutionYou can configure the PIX Firewall with a backup ACS server for VPN Clients if the primary server goes down. In order to accomplish this, complete these steps: Configure the primary ACS server with the host name and key.Configure the sec...

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What is NAT-T?Any incoming packets (which come directly from unsolicited sources) would be blocked by such a NAT appliance, as the internal PC’s and IP phone extensions are non-routable from the public network. But most of the incoming calls in IP Te...

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