Trying to configure L3 Etherchannel 3845 ISR

[mmedwid]

When I try to add an IP address to a port-channel interface on a 3845 ISR I am getting an error that seems to

imply that only L2 etherchanneling is possible.  Am I missing something?

Cisco IOS Software, 3800 Software (C3845-ADVIPSERVICESK9-M), Version 12.4(24)T8,

sfo-c3845-1#sho run int port-channel 1

Building configuration...

Current configuration : 31 bytes

!

interface Port-channel1

end

sfo-c3845-1#config t

Enter configuration commands, one per line.  End with CNTL/Z.

sfo-c3845-1(config)#int port-channel 1

sfo-c3845-1(config-if)#ip address 10.10.36.91 255.255.255.0

% IP addresses may not be configured on L2 links Port-channel1.

http://www.cisco.com/en/US/prod/collateral/routers/ps5855/prod_white_paper0900aecd806f698a.pdf

I tried spelling out this should not be seen as a switchport and this did not help..

sfo-c3845-1(config)#int Port-channel 1

sfo-c3845-1(config-if)#no switchport

Command rejected: not allowed under port channel.

[Reza Sharifi]

Can you try adding the physical ports to the portchannel first and then the IP address?

HTH

[mmedwid]

sfo-c3845-1(config)#int gig 0/0

sfo-c3845-1(config-if)#channel-group 1

Channel-group 1 does not exist in config

:-(  But it appears to infact be there..

sfo-c3845-1#sho run int port-channel 1

Building configuration...

Current configuration : 31 bytes

!

interface Port-channel1

end

??

Try the 4 port fast ethernet module instead of the embedded Gig..

sfo-c3845-1(config)#int fastEthernet 0/0/0

sfo-c3845-1(config-if)#channel-group 1

                        ^

% Invalid input detected at '^' marker.

..Nope.

[mmedwid]

Not sure why this worked - but what did it was I deleted the two Port-channel interfaces that had been configured previously.  Then I rebooted and added Portchannel 10 and it let me add the IP address and join the Gig ints to the etherchannel.  Woohoo. 

sfo-c3845-1(config)#int Port-channel 10

sfo-c3845-1(config-if)#ip address 10.10.36.91 255.255.255.0

sfo-c3845-1(config-if)#interface gig

sfo-c3845-1(config-if)#interface gigabit 0/0 - 1

                                             ^

% Invalid input detected at '^' marker.

sfo-c3845-1(config)#interface range gig 0/0 - 1

sfo-c3845-1(config-if-range)#channel-group 10

%Interface MTU set to channel-group MTU 1500.

%Interface MTU set to channel-group MTU 1500.

sfo-c3845-1(config-if-range)#

%Interface MTU set to channel-group MTU 1500.

GigabitEthernet0/1 added as member-1 to port-channel10