01-28-2003 09:16 AM - edited 03-02-2019 04:35 AM
Hello,
I am fairly new to Cisco products. I have been asked to make sure our 2651 routers are able to pass DHCP to our core sever. After seardching I could not detrermine how to configure or to see if they are already configured to pass DHCP.
Any help would be appreciated
Tom
01-28-2003 09:21 AM
Check to see if helper address are configured on the interfaces
01-28-2003 09:27 AM
No I don't see that on the interface configs.
01-28-2003 12:24 PM
These would help making DHCP work
ip forward-protocol udp bootpc
ip forward-protocol udp bootps
01-28-2003 12:28 PM
Would I enter this in global config on both core router and the client router?
01-28-2003 05:09 PM
Compiling all the information given,
- configure "ip helper-address
(The interface connected to the LAN segment where the users are also connected)
- at global config mode:
ip forward-protocol udp bootpc (or port 67)
ip forward-protocol udp bootps (or port 68)
These configs should be entered only on the router where the user are connected.
Hope this helps.
01-30-2003 06:00 AM
I entered these confiogs. I t doesn't work. I tried to ping the server from theclien pc. I cannot ping the server. Here is a copy of the sh run.
siringo#sh run
Building configuration...
Current configuration : 1118 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname siringo
!
enable secret 5 $1$a/qI$nRNa.beX/S7M47oLGgNa20
!
voice-card 1
!
ip subnet-zero
ip cef
!
!
ip host cityhall 10.1.190.54
ip name-server 10.1.200.2
!
call rsvp-sync
!
!
!
!
!
!
controller T1 1/0
framing sf
linecode b8zs
!
!
!
interface Multilink1
ip address 10.254.5.2 255.255.0.0
ppp multilink
no ppp multilink fragmentation
multilink-group 1
!
interface FastEthernet0/0
ip address 10.5.254.1 255.255.0.0
ip helper-address 10.1.200.1
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 1
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
encapsulation ppp
no fair-queue
ppp multilink
ppp multilink
multilink-group 1
!
ip classless
ip route 0.0.0.0 0.0.0.0 Multilink1 10.254.5.1
ip route 10.1.0.0 255.255.0.0 Multilink1
ip http server
ip pim bidir-enable
!
!
dial-peer cor custom
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
siringo#
01-31-2003 06:20 AM
After I enter the "ip forward-protocal" in the global config I do not see it when I do a show run. Shoud I ?
01-28-2003 06:36 PM
ip forward-protocol should be enabled by default
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