DHCP server not working on SVI interface

[prinsloo007]

Hello,

We have configured our cEdge router (C1121X-8P) to act as a DHCP server.

We have a DHCP scope configured on VLAN104 which is a SVI interface for the clients WIFI users. The Viptela edge router is not handing IP addresses however we are seeing DHCP request messages from the client device but no DHCP Offer messages from the Viptela edge router to the client device.

There is no ACL or QoS configured on the interface.

We do have a DIA data policy configured for the VPN/VRF that the VLAN is associated and we did add DHCP to the policy to exclude DHCP traffic from the DIA data policy.

What could be causing the DHCP not to be work?

Configuration below extracted from the Viptela cEdge router:

#sh run | sec dhcp
no ip dhcp use class
ip dhcp use vrf remote
ip dhcp use hardware-address client-id
ip dhcp excluded-address vrf 3 10.21.104.1 10.21.104.10
ip dhcp pool vrf-3-Vlan104
vrf 3
network 10.21.104.0 255.255.254.0
default-router 10.21.104.5
dns-server 208.67.220.220 208.67.222.222
lease 0 3

[prinsloo007]

Snippet below from packet capture for DHCP traffic.

[prinsloo007]

Sorry I see I made a mistake in my original post. We are only seeing the DHCP Discover messages from the client device on the packet capture from VLAN 104 SVI interface.

[prinsloo007]

Please help!!!

[MHM Cisco World]

Can I see interface config ?

Also why you config pool vrf aware' this need only for some case.

MHM

[prinsloo007]

DHCP pool is vrf aware because the VLAN interface falls within a Service VPN on Viptela SD-WAN.

[prinsloo007]

Interface config:

Current configuration : 304 bytes
!
interface Vlan104
description Sugarfree wifi
vrf forwarding 3
ip address 10.21.104.1 255.255.254.0
no ip redirects
ip mtu 1496
ip nbar protocol-discovery
vrrp 104 address-family ipv4
timers advertise 100
priority 110
vrrpv2
address 10.21.104.5 primary
exit-vrrp
arp timeout 1200
end

[MHM Cisco World]

You run vrrp' can you shut the interface in one of router and check.

MHM

[prinsloo007]

Let me try this and I will let you know. Thanks