I do not. Following is the whole config. (The IPs and ASNs are bogus.)
Our need is simple. We don’t need to advertise any routes. We just need to get
the default route from the ISP and ignore everything else.
[root@fw9b etc]# cat bird.conf
log "/var/log/bird.log" all;
router id 4.4.92.140;
protocol bgp isp1 {
description "BGP with ISP Router 1";
local as 65111;
neighbor 4.4.92.130%red0 as 23222;
debug all;
ipv4 {
import filter {
if net = 0.0.0.0/0 then accept;
reject;
};
export none; # Do not export any routes to ISP
next hop self;
};
}
protocol bgp isp2 {
description "BGP with ISP Router 2";
local as 65111;
neighbor 4.4.92.131%red0 as 23222;
debug all;
ipv4 {
import filter {
if net = 0.0.0.0/0 then accept;
reject;
};
export none; # Do not export any routes to ISP
next hop self;
};
}
From: Maria Matejka <[email protected]>
Sent: Thursday, August 1, 2024 2:18 PM
To: [email protected]; Eric Robinson <[email protected]>;
[email protected]
Subject: Re: Bird 2.14 Starts but Won't Bind to Port 179
Hello,
do you have
protocol device {}
in your config?
Maria
On 1 August 2024 20:41:23 CEST, Eric Robinson
<[email protected]<mailto:[email protected]>> wrote:
Bird starts, and claims that it is waiting for the upstream routers to become
neighbors…
2024-07-31 06:25:25.774 isp1: Initializing
2024-07-31 06:25:25.774 isp2: Initializing
2024-07-31 06:25:25.774 isp1: Starting
2024-07-31 06:25:25.774 isp1: State changed to start
2024-07-31 06:25:25.774 isp2: Starting
2024-07-31 06:25:25.774 isp2: State changed to start
2024-07-31 06:25:25.774 Started
2024-07-31 06:25:25.775 isp2: Waiting for 4.4.92.131 to become my neighbor
2024-07-31 06:25:25.775 isp1: Waiting for 4.4.92.130 to become my neighbor
…however, I can see in tcpdump that bird is refusing BGP connections…
08:50:31.055601 IP 4.4.92.130.34302 > 4.4.92.140.179: Flags [S], seq 733565924,
win 16384, options [mss 1424,wscale 0,nop,sackOK,eol], length 0
08:50:31.056685 IP 4.4.92.140.179 > 4.4.92.130.34302: Flags [R.], seq 0, ack
733565925, win 0, length 0
…and that’s because bird is not listening…
[root@fw9b log]# netstat -ant
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:8953 0.0.0.0:* LISTEN
tcp6 0 0 :::1013 :::* LISTEN
tcp6 0 0 :::444 :::* LISTEN
tcp6 0 0 :::81 :::* LISTEN
Bird is running...
[root@fw9b log]# ps ax|grep bird
20738 pts/0 S+ 0:00 grep bird
29732 ? Ss 0:00 /usr/sbin/bird
Strace shows that it is not binding to the port.
I read a full thread about this exact symptom here:
https://bird.network.cz/pipermail/bird-users/2020-September/014824.html
Unfortunately, I’m brand new to bird and I was unable to follow some of it.
-Eric
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--
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.
Disclaimer : This email and any files transmitted with it are confidential and
intended solely for intended recipients. If you are not the named addressee you
should not disseminate, distribute, copy or alter this email. Any views or
opinions presented in this email are solely those of the author and might not
represent those of Physician Select Management. Warning: Although Physician
Select Management has taken reasonable precautions to ensure no viruses are
present in this email, the company cannot accept responsibility for any loss or
damage arising from the use of this email or attachments.
