[FROG] [Help Wanted] The route was not advertised to any peer

[Donald Sharp]

please enter `no bgp network import-check`

donald

On Fri, Sep 18, 2020 at 7:23 AM Wei-Yu Chen <aweimeow.tw at gmail.com> wrote:
>
> Hello FRR communities,
>
> I’m working on the following topology, it’s a simple experimental environment to learn how to configure route service with FRR.
>
> H1 - R1 - R2 - H2
>
> Here is the IP information:
> H1: 192.168.10.1/24
> H2: 192.168.20.1/24
> R1: 192.168.10.254/24 & 192.168.30.1/24
> R2: 192.168.20.254/24 & 192.168.30.2/24
>
>
> And for the R1 and R2 was in separate AS, configuration as below:
>
> R1:
> router bgp 7675
>  bgp router-id 192.168.30.1
>  neighbor 192.168.30.2 remote-as 7676
>  !
>  address-family ipv4 unicast
>  network 192.168.10.0/24
>  exit-address-family
>
> R2:
> router bgp 7676
>  bgp router-id 192.168.30.2
>  neighbor 192.168.30.1 remote-as 7675
>  !
>  address-family ipv4 unicast
>  network 192.168.20.0/24
>  exit-address-family
>
> ---
>
> However, R1 didn’t get the “192.168.20.0/24” route, and R2 didn’t get the “192.168.10.0/24” route. So I decided to dig the debug info deeper. Here is some information I got:
>
> R1 # show ip route
>
> K>* 0.0.0.0/0 [0/0] via <my_public_gw>, enp8s0, 01:07:41
> C>* <my_public_ip>/26 is directly connected, enp8s0, 01:07:41
> K>* 192.168.10.0/24 [0/0] is directly connected, veth2, 00:23:10
> C>* 192.168.30.0/24 is directly connected, veth0, 00:40:32
>
> R1 # show ip bgp 192.168.10.0
> BGP routing table entry for 192.168.10.0/24
> Paths: (1 available, best #1, table default)
>  Not advertised to any peer
>  Local
>  0.0.0.0 from 0.0.0.0 (192.168.30.1)
>  Origin IGP, metric 0, weight 32768, valid, sourced, local, best (First path received)
>  Last update: Thu Sep 17 06:30:46 2020
>
> >>>
>
> R2 # show ip route
>
> C>* 192.168.20.0/24 is directly connected, veth1000, 00:41:39
> C>* 192.168.30.0/24 is directly connected, veth1, 00:41:41
>
> R2 # show ip bgp 192.168.20.0/24
> BGP routing table entry for 192.168.20.0/24
> Paths: (1 available, best #1, table default)
>  Not advertised to any peer
>  Local
>  0.0.0.0 from 0.0.0.0 (192.168.30.2)
>  Origin IGP, metric 0, weight 32768, valid, sourced, local, best (First path received)
>  Last update: Thu Sep 17 06:57:55 2020
>
> /////
>
> What I noticed is the “Not advertised to any peer”, and I can’t figure out why.
> Appreciated to any help and advise, please let me know if you need further information.
>
> Thank you guys.
>
> ---
>
> Best regards,
> Wei-Yu Chen
>
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