07-29-2015 03:45 PM - edited 03-08-2019 01:10 AM
Hello,
I am struggling to figure out my options for a routing between 887W-GN-A-K9 and 2851 routers.
887 Router is packed with 1 x ADSL2+, 4 x Fast Ethernet (Layer 2), 1 x ISDN BRI interfaces (no possibility for HWIC or WIC cards)
2851 Router is packed with 2 x Giga Ethernet (Layer 3), 1 x ISDN BRI , 1 x WIC-1T (possibility for HWIC, WIC ... cards)
Is there any way to connect routers and implement EIGRP routing ?
I will be glad for any help.
Kind regards
Lukas
07-29-2015 03:54 PM
Is it for learning? Then just connect one of the 2851-Gig-interfaces to one of the switchports of the 887. The Gig-interface will automatically switch down to a speed of 100 MBit/s.
07-29-2015 04:01 PM
Hi Karsten,
I did this however i couldn't get it work.
2851 Gig interface can operates at Layer 3:
887 fastEthernet interface can operates at Layer 2:
I couldn't ping both IP addresses and also after: show ip router command i couldn't find any eigrp routs.
07-29-2015 04:23 PM
If you connect both routers directly, both interfaces have to share a common subnet. Configure the interface vlan 172 to an ip address of 172.16.1.2/24.
To practice your routing, configure Loopback-interfaces on both routers.
For example on the 2851:
interface Loopback 0 ip address 172.16.11.1 255.255.255.255
And on the 887:
interface Loopback 0 ip address 172.16.12.1 255.255.255.255
07-29-2015 04:55 PM
will try after work.
Thanks Karsten
07-29-2015 04:59 PM
This configuration should work, I'll build a lab tomorrow to test using a 800 series rtr and a 2900 rtr.
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