yeah i pulled up the doccd to check the "real way" to do it and it states the same as you said with the 01, that is why i was wondering about the gns3 thing, and i do not have any real routers to test on at the moment...
http://www.cisco.com/en/US/customer/docs/ios/ipaddr/configuration/guide/iad_dhcp_svr_cfg_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1155880 "DHCP clients require client identifiers. The unique identification of the client is specified in dotted hexadecimal notation; for example, 01b7.0813.8811.66, where 01 represents the Ethernet media type." but i didnt see that in my debug and i tried it and it did not work either on my gns3 setup that is... -- Garry L. Baker "There is no 'patch' for stupidity." - www.sqlsecurity.com On Thu, Oct 14, 2010 at 11:39 AM, Jason Maynard <[email protected]>wrote: > interesting > > Gary: I wonder what the difference is between the method you provided and > the method I provided. > > > > Jason Maynard > > > ------------------------------ > *From:* garry baker <[email protected]> > *To:* Aung Phyo Lwin <[email protected]> > *Cc:* [email protected] > *Sent:* Thu, October 14, 2010 12:26:36 PM > > *Subject:* Re: [OSL | CCIE_RS] DHCP manual binding > > do a 'debug ip dhcp server packet' on the dhcp server and you will see the > client id, not sure if it is a GNS3 thing or not, never tired it on real > hardware... > > but i did it on GNS3 and this is how i got it to work: > > R1(dhcp server 2.2.2.1) <-> R2(client) > > R1#debug ip dhcp server packet > R1# > *Mar 1 01:19:45.635: DHCPD: DHCPDISCOVER received from client > 0063.6973.636f.2d63.3430.312e.3032.3163.2e30.3030.312d.4661.302f.31 on > interface FastEthernet0/1. > *Mar 1 01:19:48.759: DHCPD: DHCPDISCOVER received from client > 0063.6973.636f.2d63.3430.312e.3032.3163.2e30.3030.312d.4661.302f.31 on > interface FastEthernet0/1. > *Mar 1 01:19:52.883: DHCPD: DHCPDISCOVER received from client > 0063.6973.636f.2d63.3430.312e.3032.3163.2e30.3030.312d.4661.302f.31 on > interface FastEthernet0/1. > > R1#sh run | s dhcp > ip dhcp pool DHCP_POOL2 > host 2.2.2.2 255.255.255.0 > client-identifier > 0063.6973.636f.2d63.3430.312e.3032.3163.2e30.3030.312d.4661.302f.31 > client-name R2 > > R2, client debug: > R2(config-if)#do sh debug > DHCPC: > DHCP client activity debugging is on (detailed) > > R2(config-if)# > *Mar 1 01:21:32.943: DHCP: DHCP client process started: 10 > *Mar 1 01:21:32.963: RAC: Starting DHCP discover on FastEthernet0/1 > *Mar 1 01:21:32.963: DHCP: Try 1 to acquire address for FastEthernet0/1 > *Mar 1 01:21:32.979: DHCP: allocate request > *Mar 1 01:21:32.979: DHCP: zapping entry in DHC_PURGING state for Fa0/1 > *Mar 1 01:21:32.979: DHCP: deleting entry 660F680C 0.0.0.0 from list > *Mar 1 01:21:32.983: Temp IP addr: 0.0.0.0 for peer on Interface: > FastEthernet0/1 > *Mar 1 01:21:32.983: Temp sub net mask: 0.0.0.0 > *Mar 1 01:21:32.983: DHCP Lease server: 0.0.0.0, state: 11 Purging > *Mar 1 01:21:32.983: DHCP transaction id: 172E > *Mar 1 01:21:32.983: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs > *Mar 1 01:21:32.987: Next timer fires after: 00:00:20 > *Mar 1 01:21:32.987: Retry count: 0 Client-ID: > cisco-c401.021c.0001-Fa0/1 > *Mar 1 01:21:32.987: Client-ID hex dump: > 636973636F2D633430312E303231632E > *Mar 1 01:21:32.995: 303030312D4661302F31 > *Mar 1 01:21:32.999: Hostname: R2 > *Mar 1 01:21:32.999: DHCP: new entry. add to queue, interface > FastEthernet0/1 > *Mar 1 01:21:32.999: DHCP: SDiscover attempt # 1 for entry: > *Mar 1 01:21:32.999: Temp IP addr: 0.0.0.0 for peer on Interface: > FastEthernet0/1 > *Mar 1 01:21:32.999: Temp sub net mask: 0.0.0.0 > *Mar 1 01:21:33.003: DHCP Lease server: 0.0.0.0, state: 3 Selecting > *Mar 1 01:21:33.003: DHCP transaction id: 192C > *Mar 1 01:21:33.003: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs > *Mar 1 01:21:33.003: Next timer fires after: 00:00:04 > *Mar 1 01:21:33.007: Retry count: 1 Client-ID: > cisco-c401.021c.0001-Fa0/1 > *Mar 1 01:21:33.007: Client-ID hex dump: > 636973636F2D633430312E303231632E > *Mar 1 01:21:33.011: 303030312D4661302F31 > *Mar 1 01:21:33.015: Hostname: R2 > *Mar 1 01:21:33.015: DHCP: SDiscover: sending 291 byte length DHCP packet > *Mar 1 01:21:33.019: DHCP: SDiscover 291 bytes > *Mar 1 01:21:33.019: B'cast on FastEthernet0/1 interface from > 0.0.0.0 > *Mar 1 01:21:33.115: DHCP: Received a BOOTREP pkt > *Mar 1 01:21:33.115: DHCP: Scan: Message type: DHCP Offer > *Mar 1 01:21:33.119: DHCP: Scan: Server ID Option: 2.2.2.1 = 2020201 > *Mar 1 01:21:33.119: DHCP: Scan: Lease Time: 86400 > *Mar 1 01:21:33.119: DHCP: Scan: Renewal time: 43200 > *Mar 1 01:21:33.119: DHCP: Scan: Rebind time: 75600 > *Mar 1 01:21:33.119: DHCP: Scan: Subnet Address Option: 255.255.255.0 > *Mar 1 01:21:33.123: DHCP: rcvd pkt source: 2.2.2.1, destination: > 255.255.255.255 > *Mar 1 01:21:33.123: UDP sport: 43, dport: 44, length: 308 > *Mar 1 01:21:33.123: DHCP op: 2, htype: 1, hlen: 6, hops: 0 > *Mar 1 01:21:33.123: DHCP server identifier: 2.2.2.1 > *Mar 1 01:21:33.123: xid: 192C, secs: 0, flags: 8000 > *Mar 1 01:21:33.127: client: 0.0.0.0, your: 2.2.2.2 > *Mar 1 01:21:33.127: srvr: 0.0.0.0, gw: 0.0.0.0 > *Mar 1 01:21:33.127: options block length: 60 > > *Mar 1 01:21:33.127: DHCP Offer Message Offered Address: 2.2.2.2 > *Mar 1 01:21:33.131: DHCP: Lease Seconds: 86400 Renewal secs: 43200 > Rebind secs: 75600 > *Mar 1 01:21:33.131: DHCP: Server ID Option: 2.2.2.1 > *Mar 1 01:21:33.131: DHCP: offer received from 2.2.2.1 > *Mar 1 01:21:33.131: DHCP: SRequest attempt # 1 for entry: > *Mar 1 01:21:33.135: Temp IP addr: 2.2.2.2 for peer on Interface: > FastEthernet0/1 > *Mar 1 01:21:33.135: Temp sub net mask: 255.255.255.0 > *Mar 1 01:21:33.135: DHCP Lease server: 2.2.2.1, state: 4 Requesting > *Mar 1 01:21:33.135: DHCP transaction id: 192C > *Mar 1 01:21:33.135: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 > secs > *Mar 1 01:21:33.139: Next timer fires after: 00:00:03 > *Mar 1 01:21:33.139: Retry count: 1 Client-ID: > cisco-c401.021c.0001-Fa0/1 > *Mar 1 01:21:33.139: Client-ID hex dump: > 636973636F2D633430312E303231632E > *Mar 1 01:21:33.147: 303030312D4661302F31 > *Mar 1 01:21:33.151: Hostname: R2 > *Mar 1 01:21:33.151: DHCP: SRequest- Server ID option: 2.2.2.1 > *Mar 1 01:21:33.151: DHCP: SRequest- Requested IP addr option: 2.2.2.2 > *Mar 1 01:21:33.151: DHCP: SRequest placed lease len option: 86400 > *Mar 1 01:21:33.151: DHCP: SRequest: 309 bytes > *Mar 1 01:21:33.151: DHCP: SRequest: 309 bytes > *Mar 1 01:21:33.155: B'cast on FastEthernet0/1 interface from > 0.0.0.0 > *Mar 1 01:21:33.303: DHCP: Received a BOOTREP pkt > *Mar 1 01:21:33.303: DHCP: Scan: Message type: DHCP Ack > *Mar 1 01:21:33.303: DHCP: Scan: Server ID Option: 2.2.2.1 = 2020201 > *Mar 1 01:21:33.307: DHCP: Scan: Lease Time: 86400 > *Mar 1 01:21:33.307: DHCP: Scan: Renewal time: 43200 > *Mar 1 01:21:33.307: DHCP: Scan: Rebind time: 75600 > *Mar 1 01:21:33.307: DHCP: Scan: Subnet Address Option: 255.255.255.0 > *Mar 1 01:21:33.311: DHCP: rcvd pkt source: 2.2.2.1, destination: > 255.255.255.255 > *Mar 1 01:21:33.311: UDP sport: 43, dport: 44, length: 308 > *Mar 1 01:21:33.311: DHCP op: 2, htype: 1, hlen: 6, hops: 0 > *Mar 1 01:21:33.311: DHCP server identifier: 2.2.2.1 > *Mar 1 01:21:33.311: xid: 192C, secs: 0, flags: 8000 > *Mar 1 01:21:33.315: client: 0.0.0.0, your: 2.2.2.2 > *Mar 1 01:21:33.315: srvr: 0.0.0.0, gw: 0.0.0.0 > *Mar 1 01:21:33.315: options block length: 60 > > *Mar 1 01:21:33.315: DHCP Ack Message > *Mar 1 01:21:33.315: DHCP: Lease Seconds: 86400 Renewal secs: 43200 > Rebind secs: 75600 > *Mar 1 01:21:33.319: DHCP: Server ID Option: 2.2.2.1 > *Mar 1 01:21:34.935: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed > state to up > *Mar 1 01:21:35.935: %LINEPROTO-5-UPDOWN: Line protocol on Interface > FastEthernet0/1, changed state to up > *Mar 1 01:21:36.339: DHCP: Releasing ipl options: > *Mar 1 01:21:36.339: DHCP: Applying DHCP options: > *Mar 1 01:21:36.339: DHCP Client Pooling: ***Allocated IP address: 2.2.2.2 > *Mar 1 01:21:36.367: Allocated IP address = 2.2.2.2 255.255.255.0 > > *Mar 1 01:21:36.367: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0/1 > assigned DHCP address 2.2.2.2, mask 255.255.255.0, hostname R2 > > *Mar 1 01:21:41.075: %OSPF-5-ADJCHG: Process 1, Nbr 2.2.2.1 on > FastEthernet0/1 from LOADING to FULL, Loading Done > > > R2(config-if)#do sh ip int br | i DHCP > FastEthernet0/1 2.2.2.2 YES DHCP up > u > > > > > -- > Garry L. Baker > > "There is no 'patch' for stupidity." - www.sqlsecurity.com > > > On Thu, Oct 14, 2010 at 12:57 AM, Aung Phyo Lwin > <[email protected]>wrote: > >> Hi All, >> >> Have someone tried manual DHCP binding on GNS3? I tired a few options and >> its not work. I'm not sure its because of GNS3. I think it can work on real >> router. Or If something I left to configure. I refer the cisco doc and tried >> a few option and still not work. Even I tried with setting static MAC on the >> client interface. I never used this option in outside environment as hardly >> use dhcp server on the router and if its use, just use a pool of address and >> dynamic mapping. >> >> (R2-dhcp-server) <-------> (client) >> >> SERVer side. >> send a client identifier in the dhcp packet >> ip dhcp pool pool1 >> host 172.16.2.254 >> client-identifier 02c7.f800.0422 >> client-name example1 >> do not send a client identifier in the DHCP >> ip dhcp pool pool2 >> host 172.16.2.253 >> hardware-address 02c7.f800.0422 ethernet >> client-name example1 >> >> Client Side. >> interface FastEthernet0/0 >> ip address dhcp >> duplex auto >> speed auto >> or >> interface FastEthernet0/0 >> ip dhcp client client-id ascii example1 >> ip address dhcp >> duplex auto >> speed auto >> some debug >> Client >> *Mar 1 03:00:31.639: IP: s=0.0.0.0 (local), d=255.255.255.255 >> (FastEthernet0/0), len 319, sending broad/multicast >> *Mar 1 03:00:31.639: UDP src=68, dst=67 >> Server >> *Mar 1 03:02:36.231: DHCPD: Sending notification of DISCOVER: >> *Mar 1 03:02:36.231: DHCPD: htype 1 chaddr 02c7.f800.0422 >> *Mar 1 03:02:36.231: DHCPD: remote id 020a0000c0a8010100000000 >> *Mar 1 03:02:36.231: DHCPD: circuit id 00000000 >> *Mar 1 03:02:36.231: DHCPD: DHCPDISCOVER received from client >> 0063.6973.636f.2d30.3263.372e.6638.3030.2e30.3432.322d.4661.302f.30 on >> interface FastEthernet0/0. >> *Mar 1 03:02:36.235: DHCPD: Seeing if there is an internally specified >> pool class: >> *Mar 1 03:02:36.235: DHCPD: htype 1 chaddr 02c7.f800.0422 >> *Mar 1 03:02:36.235: DHCPD: remote id 020a0000c0a8010100000000 >> *Mar 1 03:02:36.235: DHCPD: circuit id 00000000u all >> Regards, >> Phyo >> >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> >
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