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Ip address dhcp issue

akintokun
Level 1
Level 1

I have 2x 1941 routers that i connect both WAN interfaces to a Netgear DSL router or I connect all three connections to ports on the same vlan on my 2960 switch. I configure the WAN interfaces on the router to receive IP address via DHCP.

None of routers receive an IP address or sometimes only one of them. Even if I release and renew the lease nothing happens. However if I connect a laptop to the port the laptop receives an IP address without a issue. The same issue happens with different Cisco routers too.

When I run a DHCP debug on the router i receive the following message repeatedly.

*:19:27.055: DHCP: SDiscover: sending 293 byte length DHCP packet
*:19:27.055: DHCP: SDiscover 293 bytes
*:19:27.055: B'cast on FastEthernet0 interface from 0.0.0.0
*:19:27.071: DHCP: Received a BOOTREP pkt
*:19:27.071: DHCP: rcv nak 192.168.100.1 is not our server 0.0.0.0
*:19:27.071: DHCP: rcv nak in Selecting state: punt

1 Reply 1

cadet alain
VIP Alumni
VIP Alumni

Hi,

I don't understand this part?

or I connect all three connections to ports on the same vlan on my 2960 switch

Could you do a simple drawing of the topology.

Post configs from 1941s and the dhcp scopes from the Netgear.

Regards.

Alain.

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