New to routing: radv Network not found?

Alessandro Vesely vesely at tana.it
Mon Apr 24 20:01:31 CEST 2023


Hi all,

I installed bird2 (Debian stock) and configured radv, following the documented example.

When bird it started, it said:
Apr 24 12:36:55 31 north bird: static1: Channel ipv6 connected to table radv_routes
Apr 24 12:36:55 31 north bird: static1: Initializing
Apr 24 12:36:55 31 north bird: radv1: Channel ipv6 connected to table radv_routes
Apr 24 12:36:55 31 north bird: radv1: Initializing
Apr 24 12:36:55 31 north bird: static1: Starting
Apr 24 12:36:55 31 north bird: static1: State changed to up
Apr 24 12:36:55 31 north bird: radv1: Starting
Apr 24 12:36:55 31 north bird: radv1: State changed to up
Apr 24 12:36:55 30 north bird: Started
Apr 24 12:36:55 31 north bird: radv1 < interface eth2r created
Apr 24 12:36:55 31 north bird: radv1 < interface ppp0 created


No more logging.  After some hours I get this:
541-north:bird# birdc show route for 2a02:29e1:300:e922::2
BIRD 2.0.7 ready.
Network not found

What does it mean?  I configured static routes in the kernel.  Perhaps I should only configure them in bird.
542-north:bird# ip route get 2a02:29e1:300:e922::2
2a02:29e1:300:e922::2 from :: dev eth2r proto kernel src 2a02:29e1:300:e922::1 metric 256 pref medium

My ISP assigned to me 2a02:29e1:300:e900/56.  I have a few addresses assigned locally, and 2a02:29e1:300:e922::1 to the lan interface (eth2r), reserving that /64 for lan hosts.  A neighboring PC has 2a02:29e1:300:e922::2/64.

External routing doesn't work, but this is another question (also asked on stackexchange: https://unix.stackexchange.com/questions/742826/ipv6-over-pppoe)

There must be something wrong in the config, which I don't know how to fix.  I paste it below.  What did I get wrong?

TIA
Ale


-----8<-----
# This is a basic configuration file, which contains boilerplate options and
# some basic examples. It allows the BIRD daemon to start but will not cause
# anything else to happen.
#
# Please refer to the BIRD User's Guide documentation, which is also available
# online at http://bird.network.cz/ in HTML format, for more information on
# configuring BIRD and adding routing protocols.

# Configure logging
log syslog all;

# Set router ID. It is a unique identification of your router, usually one of
# IPv4 addresses of the router. It is recommended to configure it explicitly.
router id 185.8.198.188;

# Turn on global debugging of all protocols (all messages or just selected classes)
debug protocols all;
debug protocols { interfaces, states };

ipv6 table radv_routes;             # Manually configured routes go here

protocol static {
	ipv6 { table radv_routes; };

	route 2a02:29e1:300:e922::/64 via "eth2r";
	route 2a02:29e1:300:e900::/56 unreachable;
	route ::0/0 via "ppp0";
}

protocol radv {
	propagate routes yes;           # Propagate the routes from the radv_routes table
	ipv6 { table radv_routes; export all; };

	interface "ppp0" {
		prefix ::/0 {
			autonomous off;         # So do not autoconfigure any IP
		};
	};

	interface "eth2r";              # No need for any other options
}
----->8-----


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