Bug 1298537

Summary:	radvd does not respect MinRtrAdvInterval and MaxRtrAdvInterval
Product:	[Fedora] Fedora	Reporter:	Antonin <antonin.vecera>
Component:	radvd	Assignee:	Pavel Šimerda (pavlix) <psimerda>
Status:	CLOSED NEXTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	23	CC:	jpopelka, psimerda
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-04-04 08:32:37 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Antonin 2016-01-14 11:51:45 UTC

Description of problem:

radvd daemon does not respect MinRtrAdvInterval+MaxRtrAdvInterval definition in his config file. It sends unsolicited router advertisement every 1 second.


Version-Release number of selected component (if applicable):

2.11


How reproducible:

I made virtual machine in gnome-boxes with Fedora Workstation.
I created this /etc/radvd.conf:

interface ens3 {
	AdvSendAdvert on;
	MinRtrAdvInterval 30;
	MaxRtrAdvInterval 100;
	prefix 2a00:2222:3333:4444::/64 {
	};
};

As user root I did:

systemctl start radvd
tcpdump -i ens3 -l -nn ip6


Actual results:

19:03:02.189912 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:03.191428 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:04.193991 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:05.196286 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:06.197749 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:07.198777 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:08.201018 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:09.202420 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56
19:03:10.203985 IP6 fe80::5054:ff:fe92:b92f > ff02::1: ICMP6, router advertisement, length 56


Expected results:

Interval between RA should be 30-100 seconds.

Comment 1 Antonin 2016-03-30 08:15:52 UTC

netstat -l46np

raw6   0   0 :::58   :::*   7   1546/radvd          
raw6   0   0 :::58   :::*   7   753/NetworkManager

I notice that radvd and NetworkManager uses same socket.
When I kill NetworkManager, radvd stops to flood with RA every second and works properly.
... but I don't know why NetworkManager listen on that port/socket.

Comment 2 Antonin 2016-04-04 08:32:37 UTC

Reuben Hawkins fixed it.
Repaired version will come in next release of radvd (2.13).