OpenVPN and traceroute: UDPv4: No buffer space available [SOLVED]

2011-02-10 Thread Jeff Ross
Greetings, In a private e-mail Martin Pelikan told me how he had solved this on their network with many OpenVPN users. With his permission, I offer this summary and solution to the list for the archives. Martin wrote: "I don't personally favor OpenVPN, but this ENOBUFS problem we solved on

Re: OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-08 Thread Jeff Ross
On 02/08/11 08:43, Jeff Ross wrote: Stuart Henderson wrote: Are you using altq? Yes, using the hfsc scheduler. I think that was the hint I needed. udp packets were all being assigned to the dns queue so I added another match rule to put openvpn traffic into the default queue. Here's what I ha

Re: OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-08 Thread Jeff Ross
Stuart Henderson wrote: Are you using altq? Yes, using the hfsc scheduler. I think that was the hint I needed. udp packets were all being assigned to the dns queue so I added another match rule to put openvpn traffic into the default queue. Here's what I have now: match in all scrub

Re: OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-08 Thread Stuart Henderson
Are you using altq? On 2011-02-07, Jeff Ross wrote: > On 02/07/11 12:33, Christiano F. Haesbaert wrote: >> On 7 February 2011 16:53, Jeff Ross wrote: >>> Greetings, >>> >>> I found this explanation for the following OpenVPN error >>> "write UDPv4: No buffer space available (code=55)" >>> >>> "N

Re: OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-07 Thread Jeff Ross
On 02/07/11 12:33, Christiano F. Haesbaert wrote: On 7 February 2011 16:53, Jeff Ross wrote: Greetings, I found this explanation for the following OpenVPN error "write UDPv4: No buffer space available (code=55)" "No buffer space available is reported by the kernel network layer when thekernel

Re: OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-07 Thread Christiano F. Haesbaert
On 7 February 2011 16:53, Jeff Ross wrote: > Greetings, > > I found this explanation for the following OpenVPN error > "write UDPv4: No buffer space available (code=55)" > > "No buffer space available is reported by the kernel network layer when > thekernel's transmit buffer is full - i.e. the net

OpenVPN and traceroute: UDPv4: No buffer space available

2011-02-07 Thread Jeff Ross
Greetings, I found this explanation for the following OpenVPN error "write UDPv4: No buffer space available (code=55)" "No buffer space available is reported by the kernel network layer when thekernel's transmit buffer is full - i.e. the network connection is running at full speed, and there's