Couple of PIX 506e issues with concerns to remote client
I have 3 sites running 506e Pix's, with a private VPN tunnel setup between each. This is all fine, we can hit all of terminal servers from any inside location.
I have remote access set to just my main location, so anyone needing to connect in from the out side will come in just to that Pix.
When I connect as a remote cisco client, I can not ping my other two locations.
Occasionally, when my remote clients establish a connection, they will not be able to authenticate to any of my terminal servers. This seems to happen when they are creating a tunnel from behind a wireless router, which is also set up for NAT'ing, and it's private network address, is using the same network address range that I'm using my private network (192.168.1.0)
Re: Couple of PIX 506e issues with concerns to remote client
You terminate your L2L and RA VPN connection at outside interface. For having traffic possible between them, you have to let IPSEC traffic enter and exit the same interface. Following is the command that you have to issue
same-security-traffic permit intra-interface
Keep in mind that you have to specify the RA VPN pool in NAT statements of remote sites. Assuming that you have exempt NAT configuration (nat 0), you need an ACL like following
access-list inside_nat0_outbound permit ip vpnpool vpnpoolnetmask remotesite remotesitenetmask
Adding the following line will resolve the unability of connection from NATing devices
crypto isakmp nat-traversal 20
One of the most important thing in architecture is choosing IP octets that are not commonly used. Same subnet in each sites issue is one of the head aches in architecture. And there is no way of solving this except using not common address scheme.
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Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...