Ipsec: you want IPComp? Please add to the bounty, see last post

mxx

I really really HATE ipsec

jimp

Yeah with OpenVPN it's as easy as checking "Enable LZO compression" :-)

Not sure what might be up with the one-direction entry, unless there was a typo in the edit.

mxx

Yes it might have been a typo :D

all offline so I can mess around :D

I re did the change you suggested and it worked (well not really). Now I got both spds but tunnel doesn't get established
sads are strange:


IPCOMP  	0000c3b5  	none  	pid=19528  	
IPCOMP 	0000da34 	none 	pid=19528

enc algorthm none?
auth algorithm pid? :D

mxx


Jul 16 19:54:32 	racoon: ERROR: failed to get sainfo.
Jul 16 19:54:32 	racoon: ERROR: failed to get sainfo.
Jul 16 19:54:32 	racoon: ERROR: failed to pre-process packet.

mxx

Okay SADs changed to
esp aes-cbc hmac-sha1

spds are both ipcomp

mxx

I saved this tunnel config again and sads changed to

IPCOMP 0000de3d deflate Jul

Before that, when sads were set to esp and spd set to ipcomp, I got
IKE info: Phase-2 proposal failed: remote No 1, missing protocol <-> local No 1 contains IPSEC_ESP
at the remote site

What's about that auth algorithm Jul? :D

mxx

Hi,

any news about any upcoming support for ipsec compression?

Are you planning to support it?

BTW: Very VERY, EXTREMELY nice work :) .. using pfsense beta4 without any problems for multi wan, multi lan, dmz, nat, aon, shaping, openvpn site to site and ipsec site to site without ANY issues since many weeks.. still doing upgrades every other day.. it's so stable and nice, wow! A BIG THANK YOU ALL!

Thanks!

axscode

Hi guys,

Just to butt in, do IPSec or OpenVPN do TCP Acceleration aside from Compression?

like this one http://www.[anti seo]expan[anti seo]d.com/ , more likely a wan OPTIMIZATION this is a vast of users needing this, especially in Satellite field.

TCP acceleration is the most needed in sat link because of its latency and TCP Session limitation.

cmb

@axscode:

Just to butt in, do IPSec or OpenVPN do TCP Acceleration aside from Compression?

No. Nor is there anything open source that does so. Such boxes cost a gigantic pile of money because it costs vast sums to develop.

axscode

@cmb

I agree, but there is one though under linux and not that mature also.. http://www.trafficsqueezer.org/Doc_TCP_Optimization.html which does almost the same, but without the Single TCP tunnel which does not solve the issue of TCP Session limits of most newest sat modems like (IPST[anti ceo]AR) aside from scpc and mcpc. but to that effect, it drives more bandwidth and lessen latency, since the roundtrip time is minimal and compressed data traffic and since it almost convert TCP traffic somewhat like UDP traffic.

And yes, its a ton of money needed, agree, agree.

mxx

Okay, but what about IPComp for ipsec? :P

cmb

@axscode:

I agree, but there is one though under linux and not that mature also.. http://www.trafficsqueezer.org/Doc_TCP_Optimization.html which does almost the same,

I should have clarified - nothing even remotely close to being production capable. There are at least a couple projects along those lines, none of which are anywhere near being usable.

@mxx:

Okay, but what about IPComp for ipsec? :P

It should work just by adding it to the config. Hack it in, try it out, and let us know how it works. It's not hard to add if it works, but we have no plans to do the leg work on that in the immediate future.

mxx

Okay I'll try :) and report back

Eugene

I've managed to bring a tunnel with ipcomp/esp between two pfSense boxes but I doubt that compression actually works. I am sending 508 byte icmp packets and I see 564 byte ESP packets. And surprisingly I can't find good info about troubleshooting ipcomp in racoon. Any thoughts/hints?

mxx

Hi, yes I tried what Jimp suggested as good as I could ;) but then I had those problems and errors you can read in the aforementioned thread.

Edit: ohh this thread it is :D sorry a little bit confused over here.. thought to having replied to the corresponding thread in the bounty forum..

Maybe you could test with Shrewsoft VPN Client.. I suppose the software would tell you if ipcomp was actually in use or not..

mxx

To anyone else wanting that feature, please add to the bounty here: http://forum.pfsense.org/index.php/topic,31527.0.html also very little amounts make a difference ;)

mxx

bump just a reminder: Anyone who would like to have compression support for ipsec, please add to the bounty. Even if it's just 5 USD ;)

Thank you!

http://forum.pfsense.org/index.php/topic,31527.0.html