Router 1921 Requirements for EHWIC-4ESG

[jean-christophe.valiere]

Hi Guys,

I want to install a module EHWIC-4ESG into a 1921 Router.

When I try to enable the service module, it says I've not enough memory ("Memory size does not meet the requirements of Embedded-Service-Engine0/0").

My router has 512MB of memory, but I can't find the memory sizer required to enable the service module ?

Can anyone point me to correct documentation ?

Thanks & Best Regards,

Jean-Christophe

[Georg Pauwen]

Hello,

512 is the maximum your router supports, the EHWIC-4ESG requires 256MB, so you should be fine.

Can you post the output of 'show ip int brief'...

[jean-christophe.valiere]

Hi,

Below is the show ip int brief:

fab.wifi#sh ip int brie
Interface                  IP-Address      OK? Method Status                Protocol
Embedded-Service-Engine0/0 10.10.10.1      YES manual up                    down
GigabitEthernet0/0         10.10.10.1      YES NVRAM  up                    up
GigabitEthernet0/1         77.89.158.66    YES NVRAM  up                    up
GigabitEthernet0/0/0       unassigned      YES unset  administratively down down
GigabitEthernet0/0/1       unassigned      YES unset  administratively down down
GigabitEthernet0/0/2       unassigned      YES unset  down                  down
GigabitEthernet0/0/3       unassigned      YES unset  down                  down
NVI0                       10.10.10.1      YES unset  up                    up
Vlan1                      unassigned      YES unset  administratively down down
Vlan424                    10.44.24.121    YES manual down                  down
fab.wifi#

 Also below is the configuration of the Embedded-Service-Engine and Gi0/0 interface:

fab.wifi#sh run int E0/0
Building configuration...

Current configuration : 176 bytes
!
interface Embedded-Service-Engine0/0
 ip unnumbered GigabitEthernet0/0
 service-module ip address 10.10.10.9 255.255.255.0
 service-module ip default-gateway 10.10.10.1
end

fab.wifi#sh run int Gi0/0
Building configuration...

Current configuration : 200 bytes
!
interface GigabitEthernet0/0
 description DMZ
 ip address 10.10.10.1 255.255.255.0
 ip nbar protocol-discovery
 ip nat inside
 ip virtual-reassembly in
 duplex auto
 speed auto
 no mop enabled
end

Thanks a lot for your support.

[Julio E. Moisa]

Hi Jean

512 should be enough

Q. Are there any additional memory requirements for the Cisco EtherSwitch EHWICs?

A. No, the Cisco ISR G2 platforms come with a minimum of 256 MB, which is more than enough to accommodate one or more EHWICs.

Reference: https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/qa_c67-612908.html

Try escalating it to the TAC.