Cisco DHCP Problems

Discussion in 'Cisco' started by Aaron Taylor, May 12, 2004.

  1. Aaron Taylor

    Aaron Taylor Guest

    Hi All,

    I've got a problem with DHCP on a 7206. It's got multiple interfaces and
    two DHCP pools to serve out to clients.

    The problem is that client on the 192.168.0.x interface are receiving
    DHCP addresses of 192.168.0.x and 192.168.2.x. Also, clients on the
    192.168.2.x interface are receiving addresses in both subnets. How do I
    make it so that clients on one interface only receive addresses that are
    in the subnet they reside in?

    Thanks,
    -Aaron Taylor

    Here is the config:

    Current configuration : 3370 bytes
    !
    ! Last configuration change at 11:16:44 PDT Tue May 11 2004 by xxxx
    ! NVRAM config last updated at 15:29:36 PDT Fri Apr 30 2004 by xxxx
    !
    version 12.2
    service timestamps debug datetime localtime
    service timestamps log datetime localtime
    service password-encryption
    service linenumber
    !
    hostname xxxx
    !
    aaa new-model
    aaa authentication banner ^CMain xxxx Router - Unauthorized Access
    Prohibited^C
    aaa authentication fail-message ^CFailed login. Try again.^C
    aaa authentication login default local-case
    enable secret x xxxxxxxxxxxxxx
    enable password x xxxxxxxxxxxxxxxx
    !
    username ataylor password x xxxxxxxxxxxxxxxx
    username gregb password x xxxxxxxxxxxxxx
    username cloper password x xxxxxxxxxxxxxx
    clock timezone PST -8
    clock summer-time PDT recurring
    clock calendar-valid
    ip subnet-zero
    no ip source-route
    !
    !
    ip domain-name crowncollege.edu
    ip name-server x.x.x.x
    ip name-server x.x.x.x
    no ip dhcp conflict logging
    ip dhcp excluded-address 192.168.2.0 192.168.2.15
    ip dhcp excluded-address 192.168.0.16 192.168.0.255
    !
    ip dhcp pool crowncollege
    network 192.168.2.0 255.255.255.0
    domain-name crowncollege.edu
    dns-server x.x.x.x x.x.x.x x.x.x.x
    default-router 192.168.2.1
    lease 0 1
    !
    ip dhcp pool crowncollege-tech
    network 192.168.0.0 255.255.255.0
    domain-name crowncollege.edu
    dns-server x.x.x.x x.x.x.x x.x.x.x
    default-router 192.168.0.1
    lease 0 1
    !
    ip cef
    ip audit notify log
    ip audit po max-events 100
    ip ssh time-out 20
    ip ssh authentication-retries 2
    prompt %h:%n%p
    !
    call rsvp-sync
    !
    !
    !
    !
    !
    !
    !
    !
    interface Serial1/0
    description *Connection to xxxx -- Outside Interface*
    ip address x.x.x.x 255.255.255.252
    ip nat outside
    encapsulation ppp
    no ip mroute-cache
    framing c-bit
    cablelength 10
    dsu bandwidth 44210
    serial restart-delay 0
    !
    interface Serial2/0
    no ip address
    no ip mroute-cache
    shutdown
    framing c-bit
    cablelength 10
    dsu bandwidth 44210
    serial restart-delay 0
    !
    interface Serial2/1
    no ip address
    no ip mroute-cache
    shutdown
    framing c-bit
    cablelength 10
    dsu bandwidth 44210
    serial restart-delay 0
    !
    interface FastEthernet3/0
    ip address x.x.x.x 255.255.254.0
    no ip mroute-cache
    duplex full
    ntp broadcast
    no mop enabled
    !
    interface FastEthernet4/0
    ip address 192.168.0.1 255.255.255.0
    ip nat inside
    no ip mroute-cache
    duplex full
    ntp broadcast
    !
    interface FastEthernet5/0
    ip address 192.168.1.1 255.255.255.0
    ip nat inside
    no ip mroute-cache
    shutdown
    duplex full
    ntp broadcast
    !
    interface FastEthernet6/0
    ip address 192.168.2.1 255.255.255.0
    ip nat inside
    no ip mroute-cache
    duplex full
    ntp broadcast
    !
    ip nat pool overload x.x.x.x x.x.x.x netmask 255.255.255.252
    ip nat inside source list 7 pool overload overload
    ip classless
    ip route profile
    ip route 0.0.0.0 0.0.0.0 66.236.9.29
    no ip http server
    !
    access-list 7 permit any
    access-list 10 permit any
    access-list 98 permit any
    !
    !
    dial-peer cor custom
    !
    !
    !
    !
    gatekeeper
    shutdown
    !
    !
    line con 0
    location DownstairsServerRoom
    exec-timeout 30 0
    line aux 0
    line vty 0 4
    access-class 10 in
    exec-timeout 30 0
    password 7 045F28220C256E4A
    transport preferred ssh
    transport input ssh
    transport output ssh
    !
    ntp clock-period 17179867
    ntp access-group peer 98
    ntp master 4
    ntp update-calendar
    ntp server 204.87.183.6
    end
    Aaron Taylor, May 12, 2004
    #1
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