Re: bird not exporting OSPF route

2024-02-28 Thread Nico Schottelius via Bird-users 


Hey Ondrej,

Ondrej Zajicek  writes:

> On Wed, Feb 28, 2024 at 04:15:32PM +0900, Nico Schottelius via Bird-users 
> wrote:
> Also note you can write the condition using sets:
>
> if source ~ [ RTS_STATIC, RTS_BGP, RTS_OSPF, RTS_OSPF_IA, RTS_OSPF_EXT1, 
> RTS_OSPF_EXT2 ] then ...

Thank you, twice! Changed it to set and to include all OSPF types and
now everything internally looks good!

Best regards,

Nico

--
Sustainable and modern Infrastructures by ungleich.ch

Re: bird not exporting OSPF route

2024-02-28 Thread Ondrej Zajicek via Bird-users 
On Wed, Feb 28, 2024 at 04:15:32PM +0900, Nico Schottelius via Bird-users wrote:
> 
> Good morning,
> 
> after switching over to the following filter, as mentioned in the last
> mails:
> 
> filter static_and_bgp_and_ospf {
>   if(source = RTS_STATIC || source = RTS_BGP || source = RTS_OSPF) then 
> accept;
>   reject;
> }

Hi

OSPF generates routes with four source values:

RTS_OSPF, RTS_OSPF_IA, RTS_OSPF_EXT1 and RTS_OSPF_EXT2.

(for internal, inter-area, type 1 external and type 2 external routes).

So in your case you just export internal OSPF routes, not the E2 route.

Also note you can write the condition using sets:

if source ~ [ RTS_STATIC, RTS_BGP, RTS_OSPF, RTS_OSPF_IA, RTS_OSPF_EXT1, 
RTS_OSPF_EXT2 ] then ...


> 
> bird> show route all for 2a0a:e5c0:2:a::b
> Table master6:
> 2a0a:e5c0:2:a::b/128 unicast [ospf6 2024-02-26] * E2 (150/10/1) 
> [147.78.194.129]
> via fe80::3eec:efff:fecb:d81a on eth0
> Type: OSPF-E2 univ
> OSPF.metric1: 10
> OSPF.metric2: 1
> OSPF.tag: 0x
> OSPF.router_id: 147.78.194.129


> 
> And is there actually a CLI syntax for
> verifying that a route is accepted by a filter?

  show route export 
  (for should be exported)

or

  show route exported 
  (for was exported)

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santi...@crfreenet.org)
"To err is human -- to blame it on a computer is even more so."

bird not exporting OSPF route

2024-02-27 Thread Nico Schottelius via Bird-users 


Good morning,

after switching over to the following filter, as mentioned in the last
mails:

filter static_and_bgp_and_ospf {
  if(source = RTS_STATIC || source = RTS_BGP || source = RTS_OSPF) then accept;
  reject;
}

I still see routes that are missing in the kernel, even though they are
coming in via OSPF and BGP:


bird> show route all for 2a0a:e5c0:2:a::b
Table master6:
2a0a:e5c0:2:a::b/128 unicast [ospf6 2024-02-26] * E2 (150/10/1) 
[147.78.194.129]
via fe80::3eec:efff:fecb:d81a on eth0
Type: OSPF-E2 univ
OSPF.metric1: 10
OSPF.metric2: 1
OSPF.tag: 0x
OSPF.router_id: 147.78.194.129
 unicast [router1_place10_v6_v4 2024-02-26 from 
2a0a:e5c0:1:8::50] (100/10) [i]
via fe80::21b:21ff:febc:bf36 on eth1
Type: BGP univ
BGP.origin: IGP
BGP.as_path:
BGP.next_hop: 2a0a:e5c0:1:8::50 fe80::21b:21ff:febc:bf36
BGP.local_pref: 500
bird>
bird> show protocols all kernel_v6
Name   Proto  Table  State  Since Info
kernel_v6  Kernel master6up 2024-02-05
  Channel ipv6
State:  UP
Table:  master6
Preference: 10
Input filter:   ACCEPT
Output filter:  static_and_bgp_and_ospf
Routes: 0 imported, 199204 exported, 0 preferred
Route change stats: received   rejected   filteredignored   accepted
  Import updates:  0  0  0  0  0
  Import withdraws:0  0---  0  0
  Export updates:   11127835  0   7001---   11120834
  Export withdraws:  1131164---------1133092

bird> show route count filter static_and_bgp_and_ospf
2802064 of 2802068 routes for 937748 networks in table master4
583651 of 583679 routes for 199200 networks in table master6
Total: 3385715 of 3385747 routes for 1136948 networks in 2 tables
bird>


(BGP can be ignored, the OSPF route is relevant)

Checking on the OS side, I see the local IPv6 address 2a0a:e5c0:2:a::a
on lo, but not the remote IPv6 address 2a0a:e5c0:2:a::b that should be added:


[08:08] server122.place10:~# ip -6 r | grep 2a0a:e5c0:2:a
2a0a:e5c0:2:a::a dev lo proto kernel metric 256 pref medium
[08:08] server122.place10:~# ip route get 2a0a:e5c0:2:a::b
RTNETLINK answers: Host is unreachable
[08:17] server122.place10:~#


What am I doing wrong here?

And is there actually a CLI syntax for
verifying that a route is accepted by a filter? In case of this
particular filter there are a lot of matches, so displaying them and
checking is not really feasible.

Greetings from Seoul,

Nico

--
Sustainable and modern Infrastructures by ungleich.ch