Cannot add tunnel mode gre multipoint line to dmvpn tunnel config

[jomo frank]

hello Expert,

I tring to create a dmvpn tunnel with multipoint destination using sdm.

When i creating the tunnel 0 I notice the line tunnel mode gre multipoint is not showing in the configuration.

I tried to adding same by using the command line but an error (see below ) keep popping up.

I should mention i created a tunnel before but  had to ammend  the config hence i delete that tunnel and tried to recreate with adjustments but I ran

into problem as outline below

ip address 192.168.ppp.18 255.255.255.0
ip mtu 1500
ip nhrp authentication rbglvpn
ip nhrp map 192.168.ppp.11 kk.kk.kk.11
ip nhrp map 192.168.ppp.111 kk.kk.kk.211
ip nhrp map multicast kk.kk.kk.11
ip nhrp map multicast kk.kk.kk.211
ip nhrp network-id ppp000
ip nhrp holdtime 360
ip nhrp nhs 192.168.ppp.11
ip nhrp nhs 192.168.ppp.111
ip tcp adjust-mss 1360
delay 1000

tunnel source FastEthernet0/1
tunnel key ppp000
tunnel protection ipsec profile CiscoCP_Profile1

Error Message

router08#config t
Enter configuration commands, one per line.  End with CNTL/Z.
router08(config)#int tunnel 0
router08(config-if)# tunnel mode gre multipoint
The tunnel destination must be unconfigured before setting this mode

Can any expert please help with a solution

Reagards

[Nagendra Kumar Nainar · Accepted solution]

Hi Jomo,

Did you (mis)configured tunnel destination earlier that you removed later?. I understand you tried deleting the tunnel and reconfigured to hit the same issue.

Can you try with a different tunnel number?.

What box and version is this?.

-Nagendra

[Giuseppe Larosa · Accepted solution]

Hello Jomo,

use a different tunnel number, the router is remembering the old configuration of this tunnel interface, including the tunnel destination command that is not compatible with tunnel mode gre multipoint.

if you really want to reuse tunnel 0 you should:

delete the interface configuration

reload the router

then configure again the tunnel 0 interface

Hope to help

Giuseppe

[jomo frank]

Hello Experts,

I unsure how to create a new tunnel with a different number using cisco Sdm.

Could any one please provide guidance.

Regards