[FROG] nexthop_set failed

Xinwei Hong xhong at skytap.com
Fri Oct 6 18:46:24 EDT 2017


Cool. Thanks! I will try it out.

On Fri, Oct 6, 2017 at 3:37 PM, Donald Sharp <sharpd at cumulusnetworks.com>
wrote:

> If you don't want bgp to verify nexthops, then do not compile with
> --enable-cumulus=yes.
>
> donald
>
> On Fri, Oct 6, 2017 at 6:28 PM, Xinwei Hong <xhong at skytap.com> wrote:
> > One follow-up question. If I run bgpd without zebra, I would still see
> that
> > error in error log and bgp does not work properly. Is it true that we
> cannot
> > run bgpd as standalone and we must run zebra in order for bgpd to work
> > correctly. I'm asking this because I only want to publish my BGP route to
> > its neighbor and don't want zebra to update routing table for me.
> >
> > Thanks,
> > Xinwei
> >
> >
> >
> > On Fri, Oct 6, 2017 at 11:31 AM, Xinwei Hong <xhong at skytap.com> wrote:
> >>
> >> Thank you Donald.
> >> After I run zebra and fix a few issue in my ip address/route table,
> things
> >> look good.
> >>
> >> Thanks a lot!
> >> Xinwei
> >>
> >> On Fri, Oct 6, 2017 at 4:28 AM, Donald Sharp <
> sharpd at cumulusnetworks.com>
> >> wrote:
> >>>
> >>> Xinwei -
> >>>
> >>> Those commands are for zebra.  Are you running it?  I would run zebra
> >>> and then run bgp and retry.
> >>>
> >>> donald
> >>>
> >>> On Thu, Oct 5, 2017 at 11:38 PM, Xinwei Hong <xhong at skytap.com> wrote:
> >>> > Thank you Donald.
> >>> > I'm new to FRR. Sorry if my question is dumb. Where do I run the
> >>> > commands?
> >>> > I can telnet to bgpd (port 2605), when I run the commands, it gives
> me:
> >>> >
> >>> > bgpd> show ip route
> >>> >
> >>> > % [BGP] Unknown command: show ip route
> >>> >
> >>> > bgpd> show int
> >>> >
> >>> > % [BGP] Unknown command: show int
> >>> >
> >>> > Note that I only have bgpd running at this moment, zebra is not setup
> >>> > yet.
> >>> >
> >>> >
> >>> > Thanks,
> >>> > Xinwei
> >>> >
> >>> >
> >>> > On Thu, Oct 5, 2017 at 2:45 PM, Donald Sharp
> >>> > <sharpd at cumulusnetworks.com>
> >>> > wrote:
> >>> >>
> >>> >> Xinwei -
> >>> >>
> >>> >> BGP is attempting to validate the nextop given to use and it is
> >>> >> failing.  What does 'show ip route' and 'show int' give us?
> >>> >>
> >>> >> thanks!
> >>> >>
> >>> >> donald
> >>> >>
> >>> >> On Wed, Oct 4, 2017 at 1:28 PM, Xinwei Hong <xhong at skytap.com>
> wrote:
> >>> >> > Hi
> >>> >> >
> >>> >> > I have a two bgp router setting between 192.168.3.2 and
> 192.168.3.3.
> >>> >> > On
> >>> >> > 192.168.3.2, I have to following config. similar config as on
> >>> >> > 192.168.3.3
> >>> >> >
> >>> >> > ----bgpd.conf
> >>> >> >
> >>> >> > ! -*- bgp -*-
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> > hostname bgpd
> >>> >> >
> >>> >> > password zebra
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> > router bgp 7632
> >>> >> >
> >>> >> >  neighbor 192.168.3.3 remote-as 7633
> >>> >> >
> >>> >> >  bgp router-id 192.168.3.2
> >>> >> >
> >>> >> >  network 10.200.0.0/16
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> >  address-family ipv4 unicast
> >>> >> >
> >>> >> >   network 10.201.142.0/24
> >>> >> >
> >>> >> >   neighbor 192.168.3.3 activate
> >>> >> >
> >>> >> >   neighbor 192.168.3.3 next-hop-self
> >>> >> >
> >>> >> >  exit-address-family
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> > access-list all permit any
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> > route-map set-nexthop permit 10
> >>> >> >
> >>> >> >  match ip address all
> >>> >> >
> >>> >> >  set ip next-hop 192.168.3.3
> >>> >> >
> >>> >> > !
> >>> >> >
> >>> >> > log file /var/log/frr/bgpd.log
> >>> >> >
> >>> >> > log stdout
> >>> >> >
> >>> >> > log syslog
> >>> >> >
> >>> >> > ------------------
> >>> >> >
> >>> >> >
> >>> >> > In log, I find the following errors.
> >>> >> >
> >>> >> > 2017/10/03 23:29:40 BGP: 192.168.3.3: nexthop_set failed,
> resetting
> >>> >> > connection - intf (nil)
> >>> >> >
> >>> >> > 2017/10/03 23:29:40 BGP: bgp_connect_success: bgp_getsockname():
> >>> >> > failed
> >>> >> > for
> >>> >> > peer 192.168.3.3, fd 9
> >>> >> >
> >>> >> > 2017/10/03 23:29:40 BGP: 192.168.3.3 [FSM] Failure handling event
> >>> >> > TCP_connection_open in state Connect, prior events BGP_Start,
> >>> >> > BGP_Start,
> >>> >> > fd
> >>> >> > 9
> >>> >> >
> >>> >> >
> >>> >> > Is there anything wrong with my config?
> >>> >> >
> >>> >> > Thanks,
> >>> >> >
> >>> >> > Xinwei
> >>> >> >
> >>> >> >
> >>> >> > _______________________________________________
> >>> >> > frog mailing list
> >>> >> > frog at lists.frrouting.org
> >>> >> > https://lists.frrouting.org/listinfo/frog
> >>> >> >
> >>> >
> >>> >
> >>
> >>
> >
>
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