- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
10-30-2019 02:43 AM - edited 10-30-2019 02:47 AM
Hello,
I'm trying to set up DHCP with the following parameters:
- New Branch Router should provide DHCP addresses for both R&D and Admin PC’s.
- Exclude the first 500 addresses for R&D
- Exclude the first 100 addresses for Admin
But the request always fails. I can't figure out what I'm doing wrong. Any help is appreciated!
Here is my Topo:
Here are my configs:
New Branch |
ip dhcp excluded-address 172.16.0.1 172.16.1.254 ip dhcp excluded-address 172.16.0.1 172.16.0.126 ! ip dhcp pool R&D_DHCP network 172.16.0.0 255.255.252.0 default-router 172.16.0.1 ip dhcp pool ADMIN_DHCP network 172.16.4.0 255.255.254.0 default-router 172.16.4.1 ! ! ! no ip cef no ipv6 cef ! ! ! ! license udi pid CISCO2911/K9 sn FTX1524UWTS ! ! ! ! ! ! ! ! ! no ip domain-lookup ! ! spanning-tree mode pvst ! ! ! ! ! ! interface Tunnel10 ip address 10.1.1.2 255.255.255.252 mtu 1476 tunnel source Serial0/0/0 tunnel destination 209.165.200.1 ! ! interface GigabitEthernet0/0 no ip address ip nat inside duplex auto speed auto ! interface GigabitEthernet0/0.10 encapsulation dot1Q 10 ip address 172.16.0.1 255.255.255.0 ! interface GigabitEthernet0/0.20 encapsulation dot1Q 20 ip address 172.16.4.1 255.255.255.0 ! interface GigabitEthernet0/1 no ip address duplex auto speed auto shutdown ! interface GigabitEthernet0/2 no ip address duplex auto speed auto shutdown ! interface Serial0/0/0 ip address 209.165.200.10 255.255.255.252 ip nat outside ! interface Serial0/0/1 no ip address clock rate 2000000 shutdown ! interface Vlan1 no ip address shutdown ! router eigrp 10 passive-interface GigabitEthernet0/0 network 10.1.1.0 0.0.0.3 network 172.16.0.0 0.0.3.255 network 172.16.4.0 0.0.1.255 ! router bgp 6503 bgp log-neighbor-changes no synchronization neighbor 209.165.200.9 remote-as 6502 network 209.165.200.8 mask 255.255.255.252 ! ip nat inside source list 9 interface Serial0/0/0 overload ip classless ip route 0.0.0.0 0.0.0.0 209.165.200.9 ! ip flow-export version 9 ! ! access-list 9 permit 172.16.0.0 0.0.7.255 ! |
Switch 2 |
spanning-tree mode pvst spanning-tree extend system-id ! interface Port-channel1 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface Port-channel2 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface FastEthernet0/1 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface FastEthernet0/2 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 2 mode desirable ! interface FastEthernet0/3 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 2 mode desirable ! interface FastEthernet0/4 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 1 mode desirable ! interface FastEthernet0/5 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 1 mode desirable ! |
Switch 1 |
interface Port-channel1 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface Port-channel3 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface FastEthernet0/1 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 3 mode desirable ! interface FastEthernet0/2 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 3 mode desirable ! interface FastEthernet0/3 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 1 mode desirable ! interface FastEthernet0/4 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 1 mode desirable ! interface FastEthernet0/5 switchport access vlan 20 switchport mode access |
Switch 0 |
interface Port-channel2 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface Port-channel6 switchport trunk allowed vlan 10,20 switchport mode trunk ! interface FastEthernet0/1 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 2 mode desirable ! interface FastEthernet0/2 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 2 mode desirable ! interface FastEthernet0/3 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 6 mode desirable ! interface FastEthernet0/4 switchport trunk allowed vlan 10,20 switchport mode trunk channel-group 6 mode desirable ! interface FastEthernet0/5 switchport access vlan 10 switchport mode access |
I'm also going to post a compressed file with the packet tracer and the current configs I have.
Thanks in advance!
Solved! Go to Solution.
- Labels:
-
Other Routing
Accepted Solutions
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
10-30-2019 03:02 AM
Hi @Rudy9746
Try this changes:
ip dhcp excluded-address 172.16.0.1 172.16.1.244
ip dhcp excluded-address 172.16.4.1 172.16.4.100
ip dhcp pool ADMIN_DHCP
network 172.16.4.0 255.255.255.0
default-router 172.16.4.1
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 172.16.0.1 255.255.252.0
Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
10-30-2019 03:02 AM
Hi @Rudy9746
Try this changes:
ip dhcp excluded-address 172.16.0.1 172.16.1.244
ip dhcp excluded-address 172.16.4.1 172.16.4.100
ip dhcp pool ADMIN_DHCP
network 172.16.4.0 255.255.255.0
default-router 172.16.4.1
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 172.16.0.1 255.255.252.0
Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
10-30-2019 09:38 AM
Oh my gosh, thank you SO much! It worked! I had the subnet masks wrong on the interfaces.
I had been working on this project for 12 ish hours yesterday (not this problem, the whole network) and I think I hit a point where I couldn't see details like that anymore.
Anyway, thank you!!
