02-26-2011 01:58 AM - edited 03-04-2019 11:35 AM
Hi All..
I have two Lease line Rel and tata between DC and DR with configuring eigrp load balancing.But due to some issue my management ask me that keep separete link for Storage Database and other traffic.
So I have configured Route Map for NAS traffic and Other(mail,other) traffic.
But problem is that when I trace my branch IP 10.2.15.1....It goes like
Tracert ,
10.3.0.1
192.168.3.31
10.5.0.149
10.5.0.150
10.2.15.1
It sohuld be go directly...
10.3.0.1
192.168.3.31
10.2.15.1
Pls find the attached file for Net diag and config...
Thanx a lo....
02-26-2011 05:28 AM
HI Arjun,
Is is possible to paste in your eigrp config. also sh ip route for the branch ip address.and also sh ip eigrp topolgy. Also what protocl are you running between the DC and Branch office.
Regards,
Kishore
02-27-2011 08:15 PM
02-28-2011 12:54 AM
I'm having a hard time getting my ahead around this without seeing all the IPs involved in your diagram...could you complete the picture? I mean you have an access-list NAS1 permit access froma host to a NAS server but not sure where they are located.
Maybe I'm just a bit slow
Regards,
Ian
02-28-2011 02:13 AM
Hi..
Take your own time......
In brief,
We have a DC and DR (Diff Location) with 45+45 MB Rel and Tata link also which having storage (NAS) both end continuously synchronize data.
DC (JOG) DR (HO)
HDFCJOGNAS1 10.0.0.175 HDFCRAMNAS1 10.1.2.74
hdfcjognas2 10.0.0.176 hdfcramnas2 10.1.2.76
So we decide to use seperate link for each pupose.Tata 45 Mb for NAS and Rel 45 MB for Other traffic.
10.5.0.162(DC)--------------------Tata-------------------(DR)10.5.0.161....NAS
10.5.0.150(DC)--------------------Rel --------------------(DR)10.5.0.149...Other
Feel free to ask any kind of query...
Thanx..
02-28-2011 04:01 AM
OK. You threw me off with you traces at the start. It will never go direct like that because according to your diagram from DR to DC there are 2 leased lines but from DC to branch there is another. The trace will always go from DR to DC to branch. Now you can choose which traffic goes over the DC to DR line which is what I think you want to achieve, right?
Traffic coming from the branch isn't going to be policy routed because the traffic does not pass through interface g0/0 which is where the policy map is applied. That maybe or maybe not what you want. I don't know.
Between DC and DR it should policy route the traffic as you intend from I can see from your config, providing the access-lists are well definde for the traffic.
So back to your trace:
It sohuld be go directly...
10.3.0.1
192.168.3.31
10.2.15.1
The only way it can go directly is if there is a line between DR and branch, which there isn't.
HTH,
Ian
03-02-2011 09:21 PM
Hi Ian.....
Thanx for keep posting...
My concern is DC------->Branch and vice versa.I dont want to use Policy Routing for DC to branch traffic.
From DC it should go directly to branch instead of going to DR and return and then to branch.
Is it require to modify ACL..
Thanx..
03-03-2011 12:37 AM
Can you paste the config of your route map. I think you are missing something like:
router-amp NAS1 permit 20
Regards,
Ian
03-03-2011 03:54 AM
03-03-2011 04:18 AM
Try this. Then try the trace again and let me know what happens:
route-map PBR permit 10
match ip address NAS
set ip next-hop 10.5.0.161
route-map PBR permit 20
match ip address OTHER
set ip next-hop 10.5.0.149
route-map PBR permit 30 --> yes, put this line on its own like this.
Regards,
Ian
03-03-2011 09:12 PM
Hi IAN..
Good Morning..
config is same which you given except "route-map PBR permit 30"
Now I added this but the result is same..
Tracert ,
10.3.0.1
192.168.3.31
10.5.0.149
10.5.0.150
10.2.15.1
Can You tell me why this command is require because I don't have depth knowledge in Route-map.
"route-map PBR permit 30"
03-04-2011 12:25 AM
Well when you add a route map to an interface you are telling it which routes to permit (or deny) and where to route them right? But route-maps like access-lists have a default "deny" at the end. So if you don't add this line to the end of the route map all other routes will be denied by default which usually is not what you want. You want to route a couple of route one way but allow all other routes to be routed normally.
I thought this might help in your situation because you were denying all other routes. But it appears that you still have the same problem.
03-04-2011 12:45 AM
Can you send me the config (PM them to me) of your routers (all 3 of them) and IP addresses of end users/servers. I'm gonna lab this up in GNS3.
Regards,
Ian
03-04-2011 02:25 AM
Hi Ian,
For PBR you don't need to add a permit all route-map entry because when ther is no match in the first entry then traffic is routed according to routing
table.It's not the same as route-maps for redistribution or filtering.
Regards.
Alain.
03-04-2011 02:43 AM
Thanks Alain for setting me straight on that.
Regards,
Ian
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