Bird 1.6.3 path prepending ?

Alexander Zubkov green at qrator.net
Sat Apr 27 22:07:52 CEST 2019


Try this:
show route all 192.168.7.0/24

On Sat, Apr 27, 2019 at 9:54 PM Pieter De Wit <pieter at insync.za.net> wrote:
>
> Sorry, I did forget that off the email:
>
> bird> show route 192.168.7.0/24
> 192.168.7.0/24     via 10.255.255.101 on ppp1 [bgp_site_1 07:50:22] * (100) [AS65101i]
>
> Should that last section not contain all the numbers ?
>
> That command was ran on the VPN server btw :)
>
>
> > On 28/04/2019, at 7:50 AM, Alexander Zubkov <green at qrator.net> wrote:
> >
> > Hi,
> >
> > Why do you think there are no prepends? Have you look at the receiving
> > side what is sent?
> >
> > On Sat, Apr 27, 2019 at 9:16 PM Pieter De Wit <pieter at insync.za.net> wrote:
> >>
> >> Hi Everyone,
> >>
> >> I have been fighting with this now for a while and I can’t seem to get my paths prepended. I am running 1.6.3 from the Ubuntu repo.
> >>
> >> Network wise, I have a VPN server that takes VPNs from remote sites. This VPN server exports the ranges to the rest of the network. It learns the connected sites from a Raspberry PI on site. These links are used as backup paths :)
> >>
> >> Here is the BGP config on the server, from a remote site:
> >>
> >> The filters basically just restrict it to RFC1918 addresses
> >>
> >> protocol bgp bgp_site_1 {
> >>        description “site_1";
> >>        local as 65001;
> >>        neighbor 10.255.255.101 as 65101;
> >>        import filter remote_sites;
> >>        export filter export_to_remote_sites;
> >> }
> >>
> >> Here is the config on the remote site:
> >>
> >> filter prepend_path {
> >>        bgp_path.prepend(65101);
> >>        bgp_path.prepend(65101);
> >>        bgp_path.prepend(65101);
> >>        accept;
> >> }
> >>
> >> protocol bgp itc_vpn {
> >>        description "ITC VPN";
> >>        local as 65101;
> >>        neighbor 10.255.255.1 as 65001;
> >>        import all;
> >>        export filter prepend_path;
> >> }
> >>
> >> What am I missing ?
> >>
> >> Thanks !
> >
>



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