Any SQM measures deployed? That what it caused it on my nodes until disabled.
On 18/06/2019 17:32, Nigel Magnay wrote: > Hi! > > I have successfully set up a wireguard connection, to a server hosted > inside Microsoft Azure. Thankyou for this software, it's so much > easier to configure than the alternatives. > > > I have a small problem though, which I think I understand (but seems > strange), but I'm not sure of the correct solution. > > I have routed all internet traffic over this connection; it works, I > can successfully ping sites, and view some. I'm using IP masquerading > at both ends to connect entire networks (I thus use the client as a > gateway). > > However - some hosts do not respond - or, rather, there's a packet > fragmentation issue. > > I can see with tcpdump on the server entries like this: > > 17:55:04.461804 IP 85.118.26.200.https > vpn1.60630: Flags [.], seq > 1:1441, ack 518, win 30, length 1440 > 17:55:04.461849 IP vpn1 > 85.118.26.200 <http://85.118.26.200>: ICMP > vpn1 unreachable - need to frag (mtu 1420), length 556 > > Which I take to mean "we got a response, it's length is too big to fit > in the vpn payload, please shorten". > > What happens though is nothing - it just keeps receiving over-long > responses, so it doesn't work - which is hardly wireguard's fault. > > Now, I guess either the end server is simply ignoring me, or the ICMP > stuff is being blocked somewhere. I'm not knowledgeable enough to know > if either of these are likely, as I'm a bit puzzle as to how anything > could work properly if either of those were true. > > So - am I doing something wrong? What's the right knobs for me to be > twiddling here? > > I have wireguard 0.0.20190601 at each end. > > > _______________________________________________ > WireGuard mailing list > WireGuard@lists.zx2c4.com > https://lists.zx2c4.com/mailman/listinfo/wireguard _______________________________________________ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard