WRV54G VPN Passthrough Problem

Discussion in 'Networking Issues' started by rangermonk, Jan 12, 2006.

  1. rangermonk

    rangermonk Network Guru Member

    Evening all,

    I have a WRV54G with the 2.38.6 firmware. I have no problems with connectivity with the QuickVPN software. Works great with the guides provides by DocLarge. Thanks Doc! The only issue (minor one at that) I have with the QuickVPN software is the 5 user limit, unless you want to purchase the upgrade, which at this time my company isn't ready to do. Sooo....

    That leads me to using the built in W2K Server RAS to setup the VPN. I have about 15 users that will need to connect up (I'm eventually going to a site-to-site).

    Thanks to DocLarge's PPTP setup videos (thanks again!), I was able to setup the RAS correctly. Sort of.

    Every thing seems to work fine, I can connect from inside the LAN, no problems, but when I connect from the remote location, I get the "error 721..." when trying to "Verifying Username and Password". Port 1723 is forwarded to my RAS server, GRE protocol is correctly forwarded (with the PPTP passthrough option in the router).

    The other thing I am able to do is put my RAS into the DMZ of the router and then the remote locations have no problems connecting. I also used the pptpserv and pptpclnt files on the W2K Server cd to make sure that the ports are forwarded correctly and I can hit the server that way from the remote locations behind the router. Gotta be something simple I'm missing.

    Any Suggestions Folks? Has me stumped. I was thinking that for some reason the WRV54G isn't forwarding GRE correctly for some reason.
  2. rangermonk

    rangermonk Network Guru Member

    Well, been doing some more testing and it seems I did miss something...

    I re-ran the pptpserv and pptpclnt Support Tools and it seems that the GRE packets aren't being forwarded by the WRV54G. I have enabled all 3 passthrus (IPSec, PPTP, and L2TP), but still no luck.

    Any suggestions?
  3. mstang83

    mstang83 Network Guru Member

    Did you ever get this figured out? I'm having same problems.

  4. DocLarge

    DocLarge Super Moderator Staff Member Member

    Wassup, fellas!! Tell ol' Doc what ails you and I'll see what I can do.

    Hmmm, I've never really had any problems running a pptp vpn server, but then again, I had my WRV running behind my SMCBR18VPN router.

    I think I'll put my WRV back online and see if I get the same problem. That way, I'll be able to look at it more closely...

  5. mstang83

    mstang83 Network Guru Member

    Linksys is going to send me some beta software they say will fix the problem I'm having with PPTP passthrough.
  6. rangermonk

    rangermonk Network Guru Member

    Nope, haven't figured it out as of yet...I'm thinking the firmware 2.38.6 maybe has a bug. I also tried 2.37, and 2.38 with the same results.

    QuickVPN works great, but I'd like to use Server 2000's built-in VPN behind the WRV54G. For some reason, it recieves packets on the 1723 port fine, but GRE 47 packets aren't being forwarded correctly. Everything is enabled for passthru in the router.

    Anyone have any luck getting it rolling? If so, what firmware did you use?
  7. DocLarge

    DocLarge Super Moderator Staff Member Member

    I tried it myself for shitz and giggles because my vpn servers work fine behind my SMCBR18VPN router. This is just some more of the "linksys bullsh!t" when it comes to limiting any other vpn capability other than linksys proprietary vpn with this router model...

    Don't put any stock in linksys saying a beta firmware is the answer. They've released 5 versions of betware in the last 14 months and still have yet to push a "final product" as of yet...

  8. rangermonk

    rangermonk Network Guru Member

    An update...

    Tried the VPN Passthru with a WRT54G v5 firmware v1.00.6, and have no problems. The Microsoft Server VPN works fine. So, its gotta be the passthru with the WRV54G.
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