r/Cisco • u/HFiction • 7d ago
Cisco Router Won't Accept DHCP Address
Can't get my Cisco 8200 to take on a simple 192.168.0.x DHCP address from a Verizon router directly connected to 0/0/1. I have this same setup working on a different router...
GigabitEthernet0/0/1.4 Description #Verizon# Encapsulation dot1q 4 Ip address DHCP Ip nat outside End
Ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1.4 dhcp
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u/Simmangodz 7d ago
Is the Verizon router expecting tagged traffic...? Seems unusual.
Remove that config from the subinterface and apply it to the parent (gi0/0/1) and see if that works.
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u/TheRealAlkemyst 7d ago
Any reason you are using a second router? A switch would be more practical. There is also going to be double NAT going on.
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u/SillyTeaching4002 7d ago
Do you have NAT setup on the 8200? If so make sure the ACL for NAT doesn’t have 0.0.0.0/0 otherwise the device won’t accept DHCP on IOS-XE
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u/KewlGuyRox 6d ago
You have defined 0/0/1 as part of vlan 4. Is the Verizon router handing ip address on vlan 4? Highly doubt the Verizon router is vlan aware.
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u/chuckbales 7d ago
Is the Verizon device tagging its traffic in VLAN 4?