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Loopback address Issue in cidr 32 with CUE

ciscoroyzhang
Level 1
Level 1

Hi all

configure CUE as following:

interface Loopback0
> ip address 172.16.30.254 255.255.255.255
> ip ospf network point-to-point
>
> interface Service-Engine1/0
> ip unnumbered Loopback0
> service-module ip address 172.16.30.253 255.255.255.0

Error message: IP Subnet does not match with interface Service-Engine1/0


I know if I change the cider on loopback 0 to 24 should sovle this issue, but let's say we only allow to have cidr 32 on loopback 0.

any suggestion?

Thanks in advance

Roy

1 Reply 1

Michael Piskun
Level 1
Level 1

Hi Roy,

Given the router needs the ability to point traffic for the subnet to the Service-Engine, configuring your loopback with /32 means that traffic for the greater 172.16.30.0/24 will not be passed to the Service-Engine1/0. No connectivity will be established to the CUE using this configuration.

If you must not change the loopback, you could directly configure the Service-Engine directly.

The following document explains this concisely:

http://www.cisco.com/en/US/docs/voice_ip_comm/unity_exp/rel2_1/cme_cli/ch2instl.html#wp1084357

Regards,

Michael

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