VPN Tip: DNS for VPNs

IN THIS ISSUE

-- DNS for VPNs

-- Traffic flow considerations for the Cisco PIX Firewall

-- L3 VPNs - Multiprotocol BGP

-- Authentication tops list of teleworking concerns

-- Understanding TCP/IP

-- Cisco PIX and VPN help needed

ADVICE

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DNS FOR VPNS | Brian Hatch and Oleg Kolesnikov

One often-overlooked requirement of a functioning VPN is DNS. This short excerpt from an Informit article on building Linux VPNs examines how to properly set up DNS for your VPN.

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TRAFFIC FLOW CONSIDERATIONS FOR THE CISCO PIX FIREWALL | Tom Lancaster

In most small environments, firewalls are deployed in simple, common schemes, such as two firewalls in series, where you have the intranet, a firewall, the DMZ, another firewall, and finally the Internet. But as time goes by, things seem to become more complex.

Some designs can get fairly contorted, putting firewalls in awkward positions that can compromise your security if you're not careful.

L3 VPNS - MULTIPROTOCOL BGP | Robbie Harrell

This tip reviews the technical aspects of how MPLS utilizes multiprotocol BGP to propagate VPN routing information between PE routers and allows for overlapping address space between customer VPN.

ALSO ON SEARCHNETWORKING.COM

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AUTHENTICATION TOPS LIST OF TELEWORKING CONCERNS Authentication and reliability are the top concerns for network admins setting up teleworker VPNs, according to Sage Research. It also says one vendor in particular is dominating the market.

UNDERSTANDING TCP/IP

This week we examine TCP/IP, one of the core networking technologies, and explore how the standard OSI model is linked to the TCP/IP suite.

CISCO PIX AND VPN HELP NEEDED

ITKnowledge Exchange member "silks101" is trying to configure Cisco PIX to accept VPN connections that will be authenticated by the Cisco ACS. Do you have any experience with this sort of configuration? Read the full post:

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