Development discussions
Fri, 21 Sep 2018, 10:57pm #1


how many different i2p instances on the different hosts can I run under the same external IP.

Will there be a conflict as in Tor where you can only run two instances under the same IP?

Is there an advantage for the network (can I help with providing that) to have more than one capable machine under a single IP ?

Sat, 22 Sep 2018, 09:23am #2
I2P Legend


you can run as many as you like upon the limit of max ports, aka 64k.
But it will not be used as you like, as the others do notice this and will utilize only of of those i2p routers or even none.
Also in kind of protection, that IP may get into the blocklist if it aggregates too much I2P routers.


Sat, 22 Sep 2018, 10:50am #3

Thank you echelon - so out of what you write it doesn't make sense supporting the network with more than 1 instance per IP :-(

So i better stop the others before I get blacklisted


Sun, 23 Sep 2018, 11:44am #4

To elaborate, the network will use all the routers... but will assume the routers are collaborating, and so we have restrictions to ensure collaborating routers aren't in the same tunnel. These restrictions apply not only to the same IP, but the same /16 address space.

We also have the "family" feature, so you can identify your group of routers. This helps us know who is running large groups, and - maybe - help us find out if the routers are malicious or benign.

Mon, 24 Sep 2018, 03:30am #5
I2P Legend

My max is 12 from one machine. You can collaborate by using 0 length tunnels. This is not for the faint of heart as they are hard to sync. In general I use more than 4 only if I feel malicious intent. You need the right balance of C and Java routers etc.... If you have one Java and one C (in different virtual environments) they sync without any tunnels and the C will benefit more and Java less (but very symbiotic and good for both). If you run in the same environment the routers will kill each other with the first starting one surviving barely. You need to feel the network for more than 3-4 and make use of stats.

Thu, 22 Nov 2018, 09:53pm #6
YesYesYes well maybe
I2P Legend

I have been having trouble downloading with I2PSanrk I've been trying a lot of different stuff just to see whatever I can do. See this post on what I tried,


Recently I installed I2Pd and BiglyBT torrent downloader. I found lots of errors trying to run I2P and I2Pd on the same system. However I found making two different download folders, one for I2PSnark and one for BiglyBT, that were synced before starting both bittorrent downloaders I got much better speed than just I2PSnark alone. BiglyBT was set up to use "only" an external I2P program with it's plug-in.