04-27-2014 10:13 AM - edited 03-04-2019 10:51 PM
Hi,
This is my 1st time setup dynamic routing. So please help me out.
Attached is my diagram. Take a look.
We have a new WAN connection.
I setup the new WAN connection on my test router as the current connection is in production and use static route between sites.
Also i attached the config of both router.
BGP is not up. Did my config was OK?
04-27-2014 10:57 AM
The problem is that there is no any valid route towards the peer BGP neighbor ip address (e.g. from site_a towards 58.139.168.170).
04-27-2014 11:31 AM
Thanks for the reply,
which one is it? does the config at Site A wrong?
does the bgp routing correct?
04-27-2014 11:55 AM
Hi,
are you trying to establish a BGP session between your sites A and C?
Or from your BGP router on each site to a provider router (the provider is providing you an MPLS backbone, e.g.)?
In the first case, the
neighbor .... remote-as 23736
command is incorrect in both your configs, as both you routers are using AS number 65322.
And you would need some static route (and path through the backbone) to reach the other router.
In the later case the neigbour IP address is incorrect - it should be the provider router connected to the WAN subnet used on your router probably?
Best regards,
Milan
04-27-2014 08:12 PM
Hi Milan,
I'm trying to establish a BGP session between router A & router C.
What is the correct config for the router as ISP gave me the AS ID but I'm not sure how to config it.
04-28-2014 12:36 AM
Hi,
what kind of service are you getting from your provider?
If it's an MPLS VPN, then you need to establish a BGP peering to his routers on each site, not between your routers directly.
Best regards,
Milan
04-28-2014 12:52 AM
Hi Milan,
The ISP doesn't specify me that, they only ask me to configure BGP routing only.
I google their website and the service is IPVPN and is using MPLS.
What information should i require from the ISP?
They gave me
BGP AS ID
PEER BGP AS ID
and set of IP address
04-28-2014 04:27 AM
Did they give you a peering neighbor IP address for each site?
Probably 58.139.93.113 for site A and is 58.139.168.169 for site C?
You should configure BGP peering to them, I believe, using the
neighbor 58.139.93.113 remote-as 23736
command on site A
and
neighbor 58.139.168.169 remote-as 23736
command on site B.
Best regards,
Milan
04-28-2014 09:23 PM
Hi,
There is a correction of the IP address assignment. Below is the correct IP address.
Also i got confirmation that the correct BGP peer is like above (with the ISP neighbor not directly with the Site A & Site B router.)
But
At side B, i configure like you said but seem BGP not connect also.
See attched config.
04-28-2014 11:51 PM
Hi,
yes, this is my understanding how your connection should look like.
I suppose you are able to ping the BGP neighbor from your router on site B?
You should start asking your provider why the BGP session is failing then? Is his router configured to peer with your one?
You might also try some BGP debugging on your side.
Best regards,
Milan
04-29-2014 03:10 AM
Hi Milan,
No, i can't ping the neighbor 58.139.139.217
Even i can't ping myself 58.139.139.218?? Should this concern anything?
I did turn on debug bgp
*Mar 1 18:48:41.427: BGP: 58.139.139.217 open active, local address 58.139.139.218
*Mar 1 18:49:43.427: BGP: 58.139.139.217 open failed: Connection timed out; remote host not responding
04-29-2014 04:12 AM
Hi,
if you can't Ping the neighbor nor yourself, is your Serial interface up?
Without a basic connectivity you can't establish BGP peering!
Best regards,
Milan
04-29-2014 06:47 AM
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