mailing list archives
Re: VPN over slow Internet connections
From: Phil Regnauld <regnauld () nsrc org>
Date: Thu, 21 Apr 2011 22:31:32 +0200
Steven Bellovin (smb) writes:
I should note: IPsec, being datagram-based, will also work well. PPTP,
which runs over TCP as far as I know, will suffer all of the ills I just
PPTP uses 1723/tcp for control, but the tunneled traffic is GRE,
so that would work fine as well.
If you do it correctly, a VPN is actually better: you can assign a
static internal IP address to each certificate. If the modem connection
drops, when you reconnect the applications will still have the same
IP address, so their connections won't be interrupted.
Absolutely, that's the case with OpenVPN, if you assign static IPs to
each profile. PPtP can do this as well, for instance using MPD.
Very big advantage in fact.
Someone suggested trying it using a FreeBSD flakeway; that's a good idea.
Using a dummynet box as a router (or bridge for that matter), you have
the benefit that you can run tcpdump on the trafic, and record the packet
sizes with and and without VPN, then derive the actual observed overhead.
Re: VPN over slow Internet connections Valdis . Kletnieks (Apr 21)
Re: VPN over slow Internet connections William Herrin (Apr 21)
RE: VPN over slow Internet connections Gary Gladney (Apr 21)
Re: VPN over slow Internet connections Ben Jencks (Apr 21)
Re: VPN over slow Internet connections Steven Bellovin (Apr 21)
Re: VPN over slow Internet connections Denys Fedoryshchenko (Apr 21)
Re: VPN over slow Internet connections Blake Hudson (Apr 22)
- RE: VPN over slow Internet connections, (continued)