Hello !
I’m trying to upgrade one of my border router from OS6 to OS7, but whenever I try to my eBGP session never comes back up.
I’ve added a new filter rule to accept 0.0.0.0/0 already. I still can’t get a default route.
I’m setting the local role in template to bgp customer.
Any ideas on how to solve that?
Thanks
without your config - it is impossible to advise anything
this is the current one running (and working) on OS6
routing bgp export
/routing bgp instance
add as=xxxxx name=american-tower redistribute-connected=yes router-id=1xx.2xx.1xx.77
/routing bgp network
add network=1xx.2xx.1xx.144/29
add network=1xx.2xx.1xx.88/29
add network=2xx.1xx.0.0/29
/routing bgp peer
add in-filter=bgp-in instance=american-tower multihop=yes name=flo remote-address=1xx.2xx.1xx.78 remote-as=xxxxx
tcp-md5-key=🤫 update-source=sfp-sfpplus1
I guess that the problem is update-source. Look what is happening after upgrade, if local-address is empty, then set it to desired IP address.
You can start by checking this article on differences between v6 and v7:
https://help.mikrotik.com/docs/display/ROS/Moving+from+ROSv6+to+v7+with+examples#MovingfromROSv6tov7withexamples-BGPConfiguration
@goldenski,
I haven’t use ROS6 (only 7) with BGP but will try to help.
Please post your routing filters too.
This is your subnets for advertise, right?
add network=1xx.2xx.1xx.144/29
add network=1xx.2xx.1xx.88/29
add network=2xx.1xx.0.0/29
and you wand to accept only default route, rigth?
True, when update-source is set to an interface name, the conversion from v6 to v7 fails.
When the IP address on your sfp-sfpplus1 interface is fixed, you can change the update-source to that IP address in v6 and try to convert.
When it is dynamic, well, tough luck. v7 does not support that.
But you can try making update-source empty.
[sigloadmin@NEZA-CORE-2] > routing filter export
/routing filter
add action=discard chain=bgp-in prefix=0.0.0.0/0 prefix-length=0 protocol=bgp
add action=discard chain=ospf-out prefix=8.8.8.8 protocol=ospf
add action=discard chain=ospf-in prefix=1.1.1.1