Hi guys,
I am looking for a way to run the dgram:udp cl only for IPv4.
I want to test the throughput of IBR-DTN on an Raspberry Pi over IPv4, because I want to compare this implementation with my implementation.
I have tried the following:
Removed the IPv6 address from the discovery configuration discovery_address = 224.0.0.142 # ff02::142 But the bundles will send over IPv6 anyway.
Switch off IPv6 support with $ echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6 But then I get the following error message: Wed Oct 28 16:20:26 2015 ERROR ApiServer: Cannot bind to socket with address [::1]:4550 And no dtn application can connect to the daemon.
If have seen that the multicast addresses are hard wired in https://github.com/ibrdtn/ibrdtn/blob/master/ibrdtn/daemon/src/net/UDPDatagr...
Is there a possibility for only using IPv4 without recompiling IBR-DTN?
Best regards,
Timo
hello Timo,
do not really know if it will help you, but I saw in the ibrconfig.conf file the option # define the interface for the API, choose any to bind on all interfaces #api_interface = any. If you change it to for example api_interface = lo at my side there is only a binding for the api to ipv4 and not to ipv6. If i leave this away i get the same error message as you do.
I bound it to lo and i was able to get access to the api with telnet telnet localhost 4550. I am working with raspberry pis like you do and lo is local loopback in ifconfig. The rest of the configuration are the same as you tried.
Hope this will help.
Best regards,
Kevin Baron
Hi,
hmm it „should“ work. As a default API should try to bind to all local interfaces I think. You can try to set the option
api_interface = 127.0.0.1
Also, I am not sure what /proc/sys/net/ipv6/conf/all/disable_ipv6 does exacly. Yoo might try alternative methods to siable IPv6:
https://wiki.archlinux.org/index.php/IPv6#Disable_IPv6
Also, to debug you can use
netstat -lnp
while the daemon is running to see on which interfaces the API (port 4550) is bound
The code you cite in UDPDatagramService.cpp has nothing to do with the API Server (which seems to be the curent problem) or the discovery mechanism. So first you need to solve the problem that the API can not be reached. Thenw ie can see what else falls apart…
Sebastian
On 28 Oct 2015, at 16:37, Timo Wischer wischer@ibr.cs.tu-bs.de wrote:
Hi guys,
I am looking for a way to run the dgram:udp cl only for IPv4.
I want to test the throughput of IBR-DTN on an Raspberry Pi over IPv4, because I want to compare this implementation with my implementation.
I have tried the following:
Removed the IPv6 address from the discovery configuration discovery_address = 224.0.0.142 # ff02::142 But the bundles will send over IPv6 anyway.
Switch off IPv6 support with $ echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6 But then I get the following error message: Wed Oct 28 16:20:26 2015 ERROR ApiServer: Cannot bind to socket with address [::1]:4550 And no dtn application can connect to the daemon.
If have seen that the multicast addresses are hard wired in https://github.com/ibrdtn/ibrdtn/blob/master/ibrdtn/daemon/src/net/UDPDatagr...
Is there a possibility for only using IPv4 without recompiling IBR-DTN?
Best regards,
Timo
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participants (3)
-
Kevin Baron -
Sebastian Schildt -
Timo Wischer