I have a pix 515E and am trying to vpn from inside my network to an outside company. I use the cisco vpn client however when i go to connect to get an error "received malformed message or negotion no longer active"
i have added a network object group in our pix config allowing access to the remote firewall but i still seem to get the error. Any help would be much appreciated.
PIX Firewall Version 6.3 provides improved support for application inspection of Encapsulating Security Payload (ESP) and for using IPSec with NAT.
ESP is an IPSec protocol that provides data confidentiality, data integrity, and protection services, optional data origin authentication, and anti-replay services. ESP encapsulates the data to be protected.
However, because ESP packets do not identify the ports that are involved, PAT is performed by assigning port 0 (zero). Only one ESP tunnel is supported at a time. Also, when the PIX Firewall has this feature enabled, it cannot terminate VPN tunnels in relation to other IPSec peers.
Application inspection of ESP traffic is disabled by default. To enable this feature, enter the following command:
fixup protocol esp-ike
When this feature is enabled, PIX Firewall preserves the IKE source port. Support is not provided for the following:
ESP tunnel serialization
Recording of SPIs for each ESP connection
Configuring an IPSec Tunnel through a Firewall with NAT:
BenefitsDocumentationPrerequisiteImage Download LinksLimitationsSupported PlatformsLicense RequirementsTopologyStep-By-Step ConfigurationConfigure Virtual ServiceActivate the virtual service and configure guest IPsConfiguring UTD (Service Plane)Configurin...
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...