Could you not also setup DHCP exclude lists so that the desired IP is the only one available for distribution in the DHCP pool? Unless of course there are restrictions...
The ip pool method is also a very good option. In both methods I would also be sure to add the ip mtu 1492 to dialer/virtual interfaces.. Thanks for the configd and ideas you have both provided.. Very good thought provocking solutions.. Best Regards, Don On 9/5/11 3:21 AM, "Adam Booth" <[email protected]> wrote: >Hi Marc, > >Does it have to be DHCP assignment? Perhaps I'm misunderstanding what >you're trying to do but it is possible to use ip local pool which I >believe >is the standard method for IPCP allocation. > >hostname R1 >ip vrf A > rd 1:1 >bba-group pppoe global > virtual-template 1 >interface FastEthernet0/0 > no ip address > speed 100 > full-duplex > pppoe enable group global >! >interface Virtual-Template1 > ip vrf forwarding A > ip address 10.1.12.1 255.255.255.0 > peer default ip address pool R2 >! >ip local pool R2 10.1.12.2 > > >hostname R2 >interface FastEthernet0/0 > no ip address > speed 100 > full-duplex > pppoe enable > pppoe-client dial-pool-number 1 >! >interface Dialer1 > ip address negotiated > encapsulation ppp > dialer pool 1 > dialer idle-timeout 0 > dialer persistent > >R1#sh ip local pool > > Pool Begin End Free In use >Blocked > R2 10.1.12.2 10.1.12.2 0 1 >0 >R1#sh ip vrf > Name Default RD Interfaces > A 1:1 Vt1 > Vi1.1 >R1#ping vrf A 10.1.12.2 > >Type escape sequence to abort. >Sending 5, 100-byte ICMP Echos to 10.1.12.2, timeout is 2 seconds: >!!!!! >Success rate is 100 percent (5/5), round-trip min/avg/max = 4/6/12 ms > >Cheers, >Adam > > >On Mon, Sep 5, 2011 at 7:53 AM, marc abel <[email protected]> wrote: > >> I have a PPPoE connection between R4 and R8. R4 is the server and is >> attempting to assign 10.8.45.8 to R8. It's interface facing R8 is in a >> VRF called R8. >> >> If I configure the DHCP pool to that VRF it works and assigns it an >> address, my problem is I need to give it a specific address. >> >> >> R4(dhcp-config)#do show run | sec dhcp >> ip dhcp excluded-address 10.8.45.4 >> ip dhcp pool PPPOE >> vrf R8 >> network 10.8.45.0 255.255.255.0 >> ip dhcp pool R8 >> host 10.8.45.8 255.255.255.0 >> client-identifier 0100.1bd5.0ff2.c9 >> >> if I try to add the vrf to the host pool I get this: >> >> >> >> R4(dhcp-config)#ip dhcp pool R8 >> R4(dhcp-config)#vrf R8 >> % This command may not be used with host pools. >> >> >> Any ideas? Here is an example where R8 gets assigned 10.8.45.1 >> _____________________________ >> >> R4(dhcp-config)#do show ip dhcp bind >> Bindings from all pools not associated with VRF: >> IP address Client-ID/ Lease expiration Type >> Hardware address/ >> User name >> 10.8.45.8 0100.1bd5.0ff2.c9 Infinite >>Manual >> >> Bindings from VRF pool PPPOE: >> IP address Client-ID/ Lease expiration Type >> Hardware address/ >> User name >> 10.8.45.1 0100.1bd5.0ff2.c9 Sep 05 2011 09:49 PM >> Automatic >> >> >> R8(config-if)#do show ip int br | exc unass >> Interface IP-Address OK? Method Status >> Proocol >> Dialer1 10.8.45.1 YES DHCP up >> up >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, >>please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >_______________________________________________ >For more information regarding industry leading CCIE Lab training, please >visit www.ipexpert.com > >Are you a CCNP or CCIE and looking for a job? Check out >www.PlatinumPlacement.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
