05-17-2012 04:32 AM - edited 03-07-2019 06:45 AM
Router 1941 is installed with additional 4 Gig-interfaces card; we have 4 ADSL Router with 4 MB connections. I need to connect all the ADSL connection to the router 4 port and combine them into 16 MB, is there any way to combine 4 Gig interfaces?
Solved! Go to Solution.
05-17-2012 04:46 AM
Hello Mohamed,
all you can do is to use all the 4 DSL lines in parallel but you cannot combine them to make them appear a single link.
You will need 4 default static routes like
ip route 0.0.0.0 0.0.0.0 gi1/0
ip route 0.0.0.0 0.0.0.0 gi1/1
ip route 0.0.0.0 0.0.0.0 gi1/2
ip route 0.0.0.0 0.0.0.0 gi1/3
And you will need appropriate NAT commands to perform NAT of internal source addresses when accessing the internet
ip nat source inside route-map nat-g10 interface gi1/0 overload
ip nat source inside route-map nat-g11 interface gi1/1 overload
ip nat source inside route-map nat-g12 interface gi1/2 overload
ip nat source inside route-map nat-g13 interface gi1/3 overload
where each route-map is like the following:
route-map nat-g10 permit 10
match ip address 10
match interface gi1/0
route-map nat-g11 permit 10
match ip address 10
match interface gi1/1
route-map nat-g12 permit 10
match ip address 10
match interface gi1/2
route-map nat-g13 permit 10
match ip address 10
match interface gi1/3
access-list 10 permit
Hope to help
Giuseppe
05-17-2012 04:46 AM
Hello Mohamed,
all you can do is to use all the 4 DSL lines in parallel but you cannot combine them to make them appear a single link.
You will need 4 default static routes like
ip route 0.0.0.0 0.0.0.0 gi1/0
ip route 0.0.0.0 0.0.0.0 gi1/1
ip route 0.0.0.0 0.0.0.0 gi1/2
ip route 0.0.0.0 0.0.0.0 gi1/3
And you will need appropriate NAT commands to perform NAT of internal source addresses when accessing the internet
ip nat source inside route-map nat-g10 interface gi1/0 overload
ip nat source inside route-map nat-g11 interface gi1/1 overload
ip nat source inside route-map nat-g12 interface gi1/2 overload
ip nat source inside route-map nat-g13 interface gi1/3 overload
where each route-map is like the following:
route-map nat-g10 permit 10
match ip address 10
match interface gi1/0
route-map nat-g11 permit 10
match ip address 10
match interface gi1/1
route-map nat-g12 permit 10
match ip address 10
match interface gi1/2
route-map nat-g13 permit 10
match ip address 10
match interface gi1/3
access-list 10 permit
Hope to help
Giuseppe
05-20-2012 12:52 AM
Hi Larosa Giuseppe,
Thanks for the reply,
In this scenario the NAT will be done by the edge ADSL routers, and Is that only the 4 static route will be enough for load sharing or need to be add each interface “IP Load-Sharing Destination-Base” command, any other method to accomplish this task!
06-02-2012 10:31 AM
Thanks.
06-04-2012 12:55 AM
Hello Mohamed,
I'm sorry I had missed your followup question.
Load sharing is achieved with the 4 static default route no special commands are needed in interface configuration mode.
Hope to help
Giuseppe
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide