PLEASE HELP> ERROR ApiServer: Cannot bind to socket with address [::1]:4550
Hello Dears, I am trying to use IBR-DTN in my thesis and I have following problem:
While trying to use deamon. The error I get is: ERROR ApiServer: Cannot bind to socket with address [::1]:4550
I tried: 1-disabled ipv6 then (ipv4 port listener also gone) 2-change dtndconf bind interface to : 127.0.0.1 3- almost checked all mailing list and FAQ of IBR-DTN.
still nothing... please help me
Hello Mehrdad,
how did you install IBR-DTN? If IBR-DTN was installed from the repositories, the daemon will start automatically. In this case a dtnd is already running on port 4550, so a second, manually started, dtnd cannot bind to it. You could check this by trying to connect to this port via telnet (or by looking at the output of "netstat -tulpen").
Otherwise you could enable the debug output of dtnd (start with -d 90) to get more information.
- Björn
On 23.11.19 18:41, Mehrdad Asadi via Ibr-dtn wrote:
Hello Dears, I am trying to use IBR-DTN in my thesis and I have following problem:
While trying to use deamon. The error I get is: ERROR ApiServer: Cannot bind to socket with address [::1]:4550
I tried: 1-disabled ipv6 then (ipv4 port listener also gone) 2-change dtndconf bind interface to : 127.0.0.1 3- almost checked all mailing list and FAQ of IBR-DTN.
still nothing... please help me
Hi,
This is actually a bug (of sorts) in IBR-DTN. I ran into the same problem a couple of years ago. After googling, I found this nice description:
https://www.agwa.name/blog/post/beware_the_ipv6_dad_race_condition
As a workaround, I added a few lines of code to base_socket::bind to make it retry the bind after a short sleep if it fails with errno == EADDRNOTAVAIL. I can try to dig up the actual patch if you want, but it was really simple.
Cheers, Ronald
-----Original Message----- From: Ibr-dtn ibr-dtn-bounces@ibr.cs.tu-bs.de On Behalf Of Björn Gernert via Ibr-dtn Sent: maandag 25 november 2019 10:47 To: ibr-dtn@ibr.cs.tu-bs.de Subject: Re: [ibr-dtn] PLEASE HELP> ERROR ApiServer: Cannot bind to socket with address [::1]:4550
Hello Mehrdad,
how did you install IBR-DTN? If IBR-DTN was installed from the repositories, the daemon will start automatically. In this case a dtnd is already running on port 4550, so a second, manually started, dtnd cannot bind to it. You could check this by trying to connect to this port via telnet (or by looking at the output of "netstat -tulpen").
Otherwise you could enable the debug output of dtnd (start with -d 90) to get more information.
- Björn
On 23.11.19 18:41, Mehrdad Asadi via Ibr-dtn wrote:
Hello Dears, I am trying to use IBR-DTN in my thesis and I have following problem:
While trying to use deamon. The error I get is: ERROR ApiServer: Cannot bind to socket with address [::1]:4550
I tried: 1-disabled ipv6 then (ipv4 port listener also gone) 2-change dtndconf bind interface to : 127.0.0.1 3- almost checked all mailing list and FAQ of IBR-DTN.
still nothing... please help me
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participants (3)
-
Björn Gernert -
Mehrdad Asadi -
Velt, R. (Ronald) in 't