nanog mailing list archives
Re: Comcast Bussiness Class and GRE Tunnels
From: Denys Fedoryshchenko <denys () visp net lb>
Date: Wed, 27 Jul 2011 12:17:16 +0300
On Tue, 26 Jul 2011 10:07:37 -0500, Nate Burke wrote:
Hello, I'm hoping that someone here might have run into a similar issue and might be able to offer me some pointers.
...
Mikrotik EOIP are not following standards, it is just their own hack, so it is very possible that some SPI in Comcast breaking it. Additionally some Mikrotik versions doesn't work properly with their own EOIP even, plus it has fragmentation issues. Fragmentation issues usually appears on large transfers, such as "stalling" sessions. I wrote my own implementation of Mikrotik EOIP for Linux, so i know what i am talking about, also in same code i wrote alternative tunnel, that has much less overhead than EOIP (compression + packets aggregation), but sure you need linux both side.Anyone with Insights or comments would be appreciated.
I can recommend you to try to use openvpn, if you are "Mikrotik only". At least it doesn't have fragmentation issues, as IPIP/GRE/PPTP has, and also it will run smoothly over NAT/SPI. Cons, that it is a bit more laggy, because it runs over TCP.
--- System administrator Denys Fedoryshchenko Virtual ISP S.A.L.
Current thread:
- Comcast Bussiness Class and GRE Tunnels Nate Burke (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels PC (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Jon Bane (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Nate Burke (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Blake Dunlap (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Owen DeLong (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Jon Bane (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Pete Carah (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels PC (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Owen DeLong (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels chris (Jul 26)
- Re: Comcast Bussiness Class and GRE Tunnels Matthew Palmer (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Denys Fedoryshchenko (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Matthew Palmer (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Denys Fedoryshchenko (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels David E. Smith (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Walter Keen (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Denys Fedoryshchenko (Jul 27)
- Re: Comcast Bussiness Class and GRE Tunnels Joel Jaeggli (Jul 28)
- <Possible follow-ups>
- re: Comcast Bussiness Class and GRE Tunnels Nick Olsen (Jul 26)