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New Member

Prob in VPN connectivity

hi

there is a pix in H.O 515E. clients are connecting through Cisco VPN client.

in my branch office internet connection is through ADSL.from this site only one client can connect to the H.O . If one more client want to connect then he is not able to connect.

But when i tried with two dialup connections two users were able to connect.Now the issue is if multiple users trying to connect through a single

shared dial up line they are not able to.

one person at a time.

Please help

Regds

Binoy.

5 REPLIES
Gold

Re: Prob in VPN connectivity

nat traversal needs to be configured on the pix515e.

e.g.

isakmp nat-traversal 20

New Member

Re: Prob in VPN connectivity

thanks jakko

let me try this option.i will get back to you.

Regds

Binoy.

New Member

Re: Prob in VPN connectivity

jakko

isakamp nat-traversal is not working situation is same.no change, pls suggest an alternative.

Regds

Binoy

Silver

Re: Prob in VPN connectivity

Binoy,

I agree with Jackko, this sound like a NAT issue.

Is NAT-T enabled on the client? To check from the initial client screen, highlight the VPN connection, click the `Modify' tab, then click the `Transport' tab. Ensure that the `Enable Transparent Tunneling' box is ticked and the `IPSec over UDP' is checked.

If this is done does it work?

If not this may still be a NAT issue, but at the ADSL router end. Does your ADSL router provide for PAT (NAT overload), can the users make simultaneous connections to Internet sites ?

New Member

Re: Prob in VPN connectivity

hi cole

thanks for your reply.

here my ADSL connection doesnt have a Permanent static IP.It's from a DHCP pool from the ISP side.

IP address of ADSL interface may change after some days.my H.O side is one Cisco router & PIX 515E.remote side is adsl connection that's not cisco,i think its a D-Link.In this scenario how can i achieve this.is there any settings in VPN client software.

please help.

Regds

Binoy

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