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Core issueThis problem occurs due to the presence of Cisco bug ID CSCsc96280.Sometimes, a router acts as a VPN server for VPN client users. When such a router is upgraded to Cisco IOS  Software Release 12.4(6.7), the router sends the NAS-Port-Type RA...

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Core issueThe fixup protocol esp-ike command enables Port Address Translation (PAT) for Encapsulating Security Payload (ESP), single tunnel.The fixup protocol esp-ike command is disabled by default. If a fixup protocol esp-ike command is issued, the ...

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Core issueThis occurs in an existing LAN-to-LAN connection between a router and a remote IPSec peer, where the IPSec peer address is the crypto map interface. The crypto map interface is also defined for Port Address Translation (PAT). If a VPN Clien...

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Core issueThe PIX Firewall does not allow you to assign a different IP address on an   inside interface other than the range that is in use by the    Dynamic Host Control Protocol (DHCP) server pool configured on the inside interface.This is the erro...

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Core issueThis problem is due to the presence of Cisco bug ID CSCei73829.This happens when a Cisco VPN Client 4.6.x connected to a Cisco IOS  router configured as the VPN server passes traffic correctly. However, after the Phase 2 Security Associatio...

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Core issueTransform set must be configured on the PIX.ResolutionOn the PIX, issue the show crypto map command.Locate the crypto map name that is associated with the interface where you are trying to connect.Using the crypto map name, issue the show c...

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IntroductionThis document gives an insight about tacacs+ and Radius.What is Tacacs?Terminal Access Controller Access-Control System (TACACS) is a remote authentication protocol that is used to communicate with an authentication server. TACACS allows ...

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