*show ip int dialer | i Internet* I wanted to compare the masks we got on the dialer from DHCP and IPCP
On 11 May 2012 22:01, Fulvio allegretti <[email protected]> wrote: > Hi Olu, here it is. I've labbed it again. There is something in it and I > pretty sure someone at ipexpert knows about this. I bumped into this as I > was doning Lab 1 vol 3, the requirement clearly states not to use IPCP on > the PPoE task, later on a different task we are asked to enable MPLS on > that link. I didn't follow the DHCP requirement, can't remember why, but > I am learning that the more you break things the more you learn. > > Starting with only PPoE configured. > > *****************R6 > > R6(config)#do sh ip int bri | ex un > Interface IP-Address OK? Method > Status Protocol > Virtual-Access1.1 172.31.200.6 YES TFTP > up up > Virtual-Template1 172.31.200.6 YES manual > down down > > R6(config)#do show run | s Dialer|Virtual|pool|dhcp > interface Virtual-Template1 > mtu 1492 > ip address 172.31.200.6 255.255.255.128 > peer default ip address pool TEST > ip local pool TEST 172.31.200.7 > R6(config)#do ping 172.31.200.7 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.7, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms > R6(config)# > > *************R7 > R7(config)#do sh ip int br | ex un > Interface IP-Address OK? Method > Status Protocol > Dialer1 172.31.200.7 YES IPCP > up up > > R7(config)#do show run | s Dialer|Virtual|pool|dhcp > pppoe-client dial-pool-number 1 > interface Dialer1 > mtu 1492 > ip address negotiated > encapsulation ppp > dialer pool 1 > > R7(config)#do ping 172.31.200.6 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.6, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms > > > > ------------------------------------------------------------------- > Assing loopback, adding static routes, enabling mpls > > *********************R6 > > R6(config)#do sh ip int bri | ex un > Interface IP-Address OK? Method > Status Protocol > Virtual-Access1.1 172.31.200.6 YES TFTP > up up > Virtual-Template1 172.31.200.6 YES manual > down down > Loopback0 192.168.6.6 YES manual > up up > > R6(config)#do show run | s Dialer|Virtual|pool|dhcp > interface Virtual-Template1 > mtu 1492 > ip address 172.31.200.6 255.255.255.128 > mpls ip > peer default ip address pool TEST > ip local pool TEST 172.31.200.7 > > R6(config)#do sh mpls ldp n > Peer LDP Ident: 192.168.7.7:0; Local LDP Ident 192.168.6.6:0 > TCP connection: 192.168.7.7.62159 - 192.168.6.6.646 > State: Oper; Msgs sent/rcvd: 8/8; Downstream > Up time: 00:00:55 > LDP discovery sources: > Virtual-Access1.1, Src IP addr: 172.31.200.7 > Addresses bound to peer LDP Ident: > 172.31.200.7 192.168.7.7 > > R6(config)#do ping 172.31.200.7 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.7, timeout is 2 seconds: > ..... > Success rate is 0 percent (0/5) > > R6(config)#do ping 192.168.7.7 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 192.168.7.7, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms > R6(config)# > > R7(config)#do sh ip int bri | ex un > Interface IP-Address OK? Method > Status Protocol > Dialer1 172.31.200.7 YES IPCP > up up > Loopback0 192.168.7.7 YES manual > up up > > R7(config)#do show run | s Dialer|Virtual|pool|dhcp > pppoe-client dial-pool-number 1 > interface Dialer1 > mtu 1492 > ip address negotiated > encapsulation ppp > dialer pool 1 > mpls ip > > R7(config)#do sh mpls ldp nei > Peer LDP Ident: 192.168.6.6:0; Local LDP Ident 192.168.7.7:0 > TCP connection: 192.168.6.6.646 - 192.168.7.7.62159 > State: Oper; Msgs sent/rcvd: 11/11; Downstream > Up time: 00:03:38 > LDP discovery sources: > Dialer1, Src IP addr: 172.31.200.6 > Addresses bound to peer LDP Ident: > 172.31.200.6 192.168.6.6 > R7(config)#do ping 172.31.200.6 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.6, timeout is 2 seconds: > ..... > Success rate is 0 percent (0/5) > R7(config)#do ping 192.168.6.6 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 192.168.6.6, timeout is 2 seconds: > ..... > Success rate is 0 percent (0/5) > R7(config)# > > ------------------------------------------------------------------------------------------ > Let's change ip assignement to DHCP > R6(config-if)#do sh ip int bri | ex un > Interface IP-Address OK? Method > Status Protocol > Virtual-Access1.1 172.31.200.6 YES TFTP > up up > Virtual-Template1 172.31.200.6 YES manual > down down > Loopback0 192.168.6.6 YES manual > up up > > R6(config-if)#do show run | s Dialer|Virtual|pool|dhcp > ip dhcp excluded-address 172.31.200.0 172.31.200.6 > ip dhcp excluded-address 172.31.200.8 172.31.200.255 > ip dhcp pool TESTDHCP > network 172.31.200.0 255.255.255.128 > interface Virtual-Template1 > mtu 1492 > ip address 172.31.200.6 255.255.255.128 > mpls ip > no peer default ip address > > R6(config-if)#do sh mpls ldp n > Peer LDP Ident: 192.168.7.7:0; Local LDP Ident 192.168.6.6:0 > TCP connection: 192.168.7.7.25521 - 192.168.6.6.646 > State: Oper; Msgs sent/rcvd: 8/8; Downstream > Up time: 00:01:04 > LDP discovery sources: > Virtual-Access1.1, Src IP addr: 172.31.200.7 > Addresses bound to peer LDP Ident: > 192.168.7.7 172.31.200.7 > R6(config-if)#do ping 172.31.200.7 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.7, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms > R6(config-if)# > > ********************R7 > R7(config-if)#do sh ip int bri | ex un > Interface IP-Address OK? Method > Status Protocol > Dialer1 172.31.200.7 YES DHCP > up up > Loopback0 192.168.7.7 YES manual > up up > R7(config-if)#do show run | s Dialer|Virtual|pool|dhcp > pppoe-client dial-pool-number 1 > interface Dialer1 > mtu 1492 > ip address dhcp > encapsulation ppp > dialer pool 1 > mpls ip > R7(config-if)#do sh mpls ldp n > Peer LDP Ident: 192.168.6.6:0; Local LDP Ident 192.168.7.7:0 > TCP connection: 192.168.6.6.646 - 192.168.7.7.25521 > State: Oper; Msgs sent/rcvd: 9/9; Downstream > Up time: 00:01:55 > LDP discovery sources: > Dialer1, Src IP addr: 172.31.200.6 > Addresses bound to peer LDP Ident: > 192.168.6.6 172.31.200.6 > R7(config-if)#do ping 172.31.200.6 > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 172.31.200.6, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms > R7(config-if)# > > > ------------------------------ > From: [email protected] > Date: Fri, 11 May 2012 19:07:46 +0100 > Subject: Re: [OSL | CCIE_RS] PPPoE IPCP/DCHP and MPLS > To: [email protected] > CC: [email protected] > > > Fulvio, > > for the two configs (DHCP & IPCP) post output of > *show run | s Dialer|Virtual|pool|dhcp* > > along with > * > * > *show ip int dialer | i Internet* > > On 11 May 2012 09:38, Fulvio allegretti <[email protected]> wrote: > > > Hi there, > I have bumped into this and I am trying to understand the logic behind it. > The set up is two routers running PPPoE with the client ip address being > negotiated by IPCP. I then run MPLS over it, just adding mpls ip on the > interfaces, I've got my static routes to the loopbacks, neighbors come up, > I've got labels, it's all good execept that I can't ping the other end, I > can't sill ping the loopbacks. Change the ip assignment method to DHCP and > it is all working. Change it back to IPCP, no pin. Remove MPLS, ping is > back. Put MPLS back on, no ping. Change to DHCP ping is back. You get the > picture.........SIIL (stuck in ignorant loop that is). Fulvio > _______________________________________________ > 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 <http://www.platinumplacement.com/> > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > > > -- > Olugbenga Oyebande > MD, DAIT > 234-803-302-5287 > http://www.dait-ng.com > Cisco Networks, Network Security & Quality of Service > DAIT Linux Enterprise Network Servers, Web Portal Projects > Broadband Internet Deployment & ISP Consultancy > [image: View my profile on LinkedIn]View Olugbenga Oyebande's > profile<http://ng.linkedin.com/pub/olugbenga-oyebande/15/395/8a9> > > -- Olugbenga Oyebande MD, DAIT 234-803-302-5287 http://www.dait-ng.com Cisco Networks, Network Security & Quality of Service DAIT Linux Enterprise Network Servers, Web Portal Projects Broadband Internet Deployment & ISP Consultancy [image: View my profile on LinkedIn]View Olugbenga Oyebande's profile<http://ng.linkedin.com/pub/olugbenga-oyebande/15/395/8a9> _______________________________________________ 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 http://onlinestudylist.com/mailman/listinfo/ccie_rs
