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Old 11-30-2023, 10:29 AM   #1
major4x
LQ Newbie
 
Registered: Dec 2015
Posts: 4

Rep: Reputation: Disabled
IPv6 Routing Table not Updated


Hi,

I have a Slackware 15 host. On the same Ethernet link, there is another (non-Slackware) host that acts as a router. The Slackware host received the following RA:

Code:
#
# radvd configuration generated by radvdump 2.19
# based on Router Advertisement from fe80::ba27:ebff:fec6:f54d
# received by interface eth1
#

interface eth1
{
	AdvSendAdvert on;
	# Note: {Min,Max}RtrAdvInterval cannot be obtained with radvdump
	AdvManagedFlag off;
	AdvOtherConfigFlag off;
	AdvReachableTime 0;
	AdvRetransTimer 0;
	AdvCurHopLimit 0;
	AdvDefaultLifetime 0;
	AdvHomeAgentFlag off;
	AdvDefaultPreference medium;

	route fd22:7509:4b19:1::/64
	{
		AdvRoutePreference medium;
		AdvRouteLifetime 1800;
	}; # End of route definition

}; # End of interface definition
but the new route fd22:7509:4b19:1::/64 did not show in the routing table:

Code:
alex@dilettante:~$ /sbin/ip -6 r
::1 dev lo proto kernel metric 256 pref medium
****:****:****:****::/64 dev eth1 proto kernel metric 256 pref medium
fe80::/64 dev vmnet1 proto kernel metric 256 pref medium
fe80::/64 dev vmnet8 proto kernel metric 256 pref medium
fe80::/64 dev eth1 proto kernel metric 256 pref medium
default via fe80::1227:f5ff:fe17:70fb dev eth1 proto ra metric 1024 expires 1420sec hoplimit 64 pref medium
alex@dilettante:~$
I have double-checked and enabled RA via all /proc/sys/.../*ra*/ kernel configuration options. Everything is manual, bare IPv6 with RA enabled in the kernel, there is no NetworkManager, DHCPv6 or anything else external to mess the options.

Thanks!
 
Old 12-12-2023, 03:20 PM   #2
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 3,347

Rep: Reputation: Disabled
Are you absolutely certain that the RA is both sent and received? Does it show up in a tcpdump?
 
  


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