Same Tunnel Interface destination with 2 different next-hop IPs

Same Tunnel Interface destination with 2 different next-hop IPs

NewsGroups | Search | Tools
 alt.certification.cisco  Post an article  get this group's latest topics as an RSS feed add this group's latest topics to your My MSN content add this group's latest topics to your My Yahoo content  add this group's latest topics to your Google content  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Same Tunnel Interface destination with 2 different next-hop IPs derSchweiz 04-25-2007
Posted by derSchweiz on April 25, 2007, 12:30 am
If you were  Registered and logged in, you could reply and use other advanced thread options


I am currently trying to build 2 Tunnel Interfaces across 2 different links,
with 2 Cisco 2600s. Router 1 is the router with 2 Next-Hop IPs Router 2.

This poses a problem, I need to get the tunnel 10's traffic to only go
through the 192.168.10.254 (fa0/0) next-hop IP, and tunnel 20's traffic to
only go through the 192.168.20.254 (fa0/1) next hop IP. I am stuck because
the 2 destinations are the same. Is there any way to accomplish this?


Router 1
============
Fast Ethernet 0/0 - 192.168.10.1/24
Fast Ethernet 0/1 - 192.168.20.1/24

ip route 192.168.30.1 255.255.255.255 192.168.10.254
ip route 192.168.30.1 255.255.255.255 192.168.20.254

interface tunnel 10
//some output omitted
tunnel-source fastEthernet 0/0
tunnel-destination 192.168.30.1
!

interface tunnel 20
//some output omitted
tunnel-source fastEthernet 0/1
tunnel-destination 192.168.30.1
!

Router 2
============
Fast Ethernet 0/0 - 192.168.30.1/24

Thanks in Advance!



Posted by Scooby on April 25, 2007, 8:39 am
If you were  Registered and logged in, you could reply and use other advanced thread options


>I am currently trying to build 2 Tunnel Interfaces across 2 different
>links, with 2 Cisco 2600s. Router 1 is the router with 2 Next-Hop IPs
>Router 2.
>
> This poses a problem, I need to get the tunnel 10's traffic to only go
> through the 192.168.10.254 (fa0/0) next-hop IP, and tunnel 20's traffic to
> only go through the 192.168.20.254 (fa0/1) next hop IP. I am stuck because
> the 2 destinations are the same. Is there any way to accomplish this?
>
>
> Router 1
> ============
> Fast Ethernet 0/0 - 192.168.10.1/24
> Fast Ethernet 0/1 - 192.168.20.1/24
>
> ip route 192.168.30.1 255.255.255.255 192.168.10.254
> ip route 192.168.30.1 255.255.255.255 192.168.20.254
>
> interface tunnel 10
> //some output omitted
> tunnel-source fastEthernet 0/0
> tunnel-destination 192.168.30.1
> !
>
> interface tunnel 20
> //some output omitted
> tunnel-source fastEthernet 0/1
> tunnel-destination 192.168.30.1
> !
>
> Router 2
> ============
> Fast Ethernet 0/0 - 192.168.30.1/24
>
> Thanks in Advance!
>

Well, the first thought that comes to mind is Policy Based Routing, but you
haven't really given enough info. Why are you building two tunnels from/to
the same locations and what makes the distinction of what traffic should go
through which tunnel?



Posted by derSchweiz on April 25, 2007, 11:52 am
If you were  Registered and logged in, you could reply and use other advanced thread options


I am attempting to load balance across 2 internet connections, one connected
to each fast ethernet interface, and I want to do CEF per-packet round robin
through each of the tunnels. This is primarily for the upstream direction.



>>I am currently trying to build 2 Tunnel Interfaces across 2 different
>>links, with 2 Cisco 2600s. Router 1 is the router with 2 Next-Hop IPs
>>Router 2.
>>
>> This poses a problem, I need to get the tunnel 10's traffic to only go
>> through the 192.168.10.254 (fa0/0) next-hop IP, and tunnel 20's traffic
>> to only go through the 192.168.20.254 (fa0/1) next hop IP. I am stuck
>> because the 2 destinations are the same. Is there any way to accomplish
>> this?
>>
>>
>> Router 1
>> ============
>> Fast Ethernet 0/0 - 192.168.10.1/24
>> Fast Ethernet 0/1 - 192.168.20.1/24
>>
>> ip route 192.168.30.1 255.255.255.255 192.168.10.254
>> ip route 192.168.30.1 255.255.255.255 192.168.20.254
>>
>> interface tunnel 10
>> //some output omitted
>> tunnel-source fastEthernet 0/0
>> tunnel-destination 192.168.30.1
>> !
>>
>> interface tunnel 20
>> //some output omitted
>> tunnel-source fastEthernet 0/1
>> tunnel-destination 192.168.30.1
>> !
>>
>> Router 2
>> ============
>> Fast Ethernet 0/0 - 192.168.30.1/24
>>
>> Thanks in Advance!
>>
>
> Well, the first thought that comes to mind is Policy Based Routing, but
> you haven't really given enough info. Why are you building two tunnels
> from/to the same locations and what makes the distinction of what traffic
> should go through which tunnel?
>
>



Similar ThreadsPosted
Which command displays the EIGRP cost to a specific destination September 6, 2006, 5:04 pm
dynamic VPN tunnel April 29, 2005, 4:54 am
805 to pix515 VPN tunnel.... April 18, 2007, 2:32 am
web vpn and tunnel mode April 21, 2008, 12:36 am
how to set routing inside vpn tunnel (PIX) October 3, 2007, 8:05 pm
[flash taturial]Configure Cisco GRE tunnel August 3, 2007, 11:29 pm
Cisco SOHO 91 VPN, no traffic coming back through tunnel May 12, 2007, 2:04 am
Why Loopback an Interface? March 28, 2006, 4:20 pm
VLAN interface IP January 26, 2007, 12:02 am
Loopback interface and OSPF February 21, 2005, 12:03 am

other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

Custom CGI Perl and PHP programming by 1-Script.com

Contact Us | Privacy Policy
The site map in XML format XML site map