UDP problem…



I found a peculiar problem while I was setting up an openvpn link the other day. The goal was a simple shared key setup and I started with the sample configuration and modified it a bit to fit the circumstances, I allowed the correct UDP port through the firewall (I think 1194 if I recall correctly) and … it didn’t work. So…. I started over and worked from empty config files and put in the bare minimums… it still didn’t work – no appearance that it was making the connection at all to negotiate the link. I double and triple checked the firewall config/restarted it… nothing Then I decided to try TCP instead of a UDP port. Changed the firewall config to allow the TCP traffic on 1194, adjusted the server and client config and lo and behold it worked. The firewall in question….


Is a VERY old and due for software rebuild Mandrake SNF (Single Network Firewall). I had hoped to be able to go the upgrade route to the MNF series, but license changes there have made the price for them out of reason. (And if I were to do it, I’d have to make too many modifications to make it worth doing). Of course, MNF2 isn’t freely available at all (as per my last check.) So… IPcop may be in the future for that setup.

The bottom line is that there seems to be something funky with UDP and this Mandrake SNF install. The moral of the story may be to consider TCP if you run into problems with a UDP connection over a firewall (and can choose the protocol.)

Related Posts

Blog Traffic Exchange Related Posts
  • Computer security software nets $2.6 Billion over last two years. SecurityFix is talking about the computer security industry. Further, computer users spend $9 billion a year on computers repairs from spyware and antivirus. This reminds me of a recent story of a man that threw out a perfectly good machine because it was infested with spyware. For starters, I do......
  • What a week.... I think it's time to pass along a long story of what's gone on over the last week or so here and some of the reasons there hasn't been anything posted. Generally, I would say that work has been busy, but something happened last week that went a bit beyond......
  • IPtables magic, or... Blocking Aggressive Outbound Traffic with IPtables Blocking Aggressive Outbound Traffic with IPtables. For starters, I've tested this on a test system that started out with NO iptables rules, and then moved on to an IPCop install (the vmware download from vmwarez.com...) I've detailed previously one dilemma that I had with regard to my own cable connection......
Blog Traffic Exchange Related Websites
  • Job Search Resources for Baby Boomers The increase in demand for jobs for baby boomers has generated additional online resources for finding those jobs and/or for increasing your chances for landing one of them. ¬†These are some of those job search resources that I have found and checked out: 1. ¬†AARP The AARP should be front......
  • Understanding How Social Networking Works for Blogs By now, the phrase social networking has been emblazoned on most of our minds. The problem is, not a lot of people understand how it really works or how to use it to promote their sites and their blogs. When used properly, social networking can be very beneficial and can......
  • 5 Easy Coin Collecting Mistakes Coin collecting is something that is fun for all ages and all personalities, as individuals can find their own reasons to want to have a collection. Each collection is unique and reflects the personality of the collector. If you are thinking about getting into coin collecting you are going to......
www.pdf24.org    Send article as PDF   

Similar Posts


See what happened this day in history from either BBC Wikipedia
Search:
Keywords:
Amazon Logo

Comments are closed.


Switch to our mobile site