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Hi Dinesh,<div><br></div><div>Have a look through your NAT translations.</div><div><br></div><div>Depending on what you're trying to achieve the "ip nat outside" should be on FastEthernet4 possibly.</div><div><br></div><div>Have a read of this to see if if your setup is similar.</div><div><br></div><div><a href="http://www.cisco.com/en/US/docs/routers/access/800/850/software/configuration/guide/pppoenat.html#wp1235296">http://www.cisco.com/en/US/docs/routers/access/800/850/software/configuration/guide/pppoenat.html#wp1235296</a></div><div><br></div><div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Lucida Grande'; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Lucida Grande'; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Lucida Grande'; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 12px; margin-left: 0px; "></p><div>--</div><div><br></div>Shaineel Singh<div><div>IP/MPLS Engineering</div><div>AAPT Pty Ltd</div><div><br></div><div>phone: +613 8308 3567</div><div>email: <a href="mailto:shain.singh@aapt.com.au">shain.singh@aapt.com.au</a><br><div><div></div></div></div><div><br></div></div><p></p></div></span></span></span></span><br class="Apple-interchange-newline"> </div><br><div><div>On 26/09/2008, at 10:18 AM, Dinesh Bhonsle wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">Hi,<br><br>I have cisco850 - pppoe client, i am unable to ping to the default gw on the bras.<br>pc-----cisco850(CPE)-------netgearSwitch(pvid 4001)------BRAS<br><br>cisco-850 gets a ip address from BRAS as <a href="http://172.16.1.3">172.16.1.3</a>. multibind interface at BRAS is <a href="http://172.16.1.254">172.16.1.254</a>.<br> so when i try to ping <a href="http://172.16.1.254">172.16.1.254</a> from cisco, encapsulation fails, may be arp res<br><br>cpe1#sh run<br>Building configuration...<br><br>Current configuration : 1540 bytes<br>!<br>version 12.4<br> no service pad<br>service timestamps debug datetime msec<br>service timestamps log datetime msec<br>no service password-encryption<br>!<br>hostname cpe1<br>!<br>boot-start-marker<br>boot-end-marker<br>!<br>enable secret 5 $1$pb71$nc1Bi.IaAJLdMPXtXeggO0<br> enable password test123<br>!<br>no aaa new-model<br>!<br>resource policy<br>!<br>ip subnet-zero<br>no ip routing<br>no ip dhcp use vrf connected<br>!<br>ip dhcp pool myownpool<br> import all<br> network <a href="http://192.168.100.0">192.168.100.0</a> <a href="http://255.255.255.0">255.255.255.0</a><br> dns-server <a href="http://68.2.16.25">68.2.16.25</a> <br> lease 7<br>!<br>!<br>no ip cef<br>vpdn enable<br>!<br>!<br>!<br>!<br>!<br>! <br>!<br>!<br>!<br>interface FastEthernet0<br>!<br>interface FastEthernet1<br> shutdown <br> !<br>interface FastEthernet2<br> shutdown<br>!<br>interface FastEthernet3<br> shutdown<br>!<br>interface FastEthernet4<br> description "UPLINK connected to BRAS"<br> no ip address<br> ip virtual-reassembly<br> no ip route-cache<br> duplex auto<br> speed auto<br> pppoe enable group global<br> pppoe-client dial-pool-number 1<br>!<br>interface Vlan1<br> description "dhcp interface for home-users"<br> ip address <a href="http://192.168.100.1">192.168.100.1</a> <a href="http://255.255.255.0">255.255.255.0</a><br> ip nat inside<br> ip virtual-reassembly<br> no ip route-cache<br>!<br>interface Dialer0<br> ip address negotiated<br> ip mtu 1492<br> ip nat outside<br> ip virtual-reassembly<br> encapsulation ppp<br> dialer pool 1<br> dialer-group 1<br> ppp chap hostname team@teambackbone<br> ppp chap password 0 team<br>!<br>ip classless<br>ip route <a href="http://0.0.0.0">0.0.0.0</a> <a href="http://0.0.0.0">0.0.0.0</a> Dialer0<br>!<br>no ip http server<br>no ip http secure-server<br> ip nat inside source list 1 interface Dialer0 overload<br>!<br>dialer-list 1 protocol ip permit<br>!<br>control-plane<br>! <br>!<br>line con 0<br> no modem enable<br>line aux 0<br>line vty 0 4<br> password test<br> login<br>!<br>scheduler max-task-time 5000<br>end<br><br><br>cpe1#ping <a href="http://172.16.1.254">172.16.1.254</a> <br><br>Type escape sequence to abort.<br>Sending 5, 100-byte ICMP Echos to <a href="http://172.16.1.254">172.16.1.254</a>, timeout is 2 seconds:<br> <br>*Mar 1 06:55:26.082: IP: tableid=0, s=<a href="http://172.16.1.4">172.16.1.4</a> (local), d=<a href="http://172.16.1.254">172.16.1.254</a> (Dialer0), routed via RIB<br>*Mar 1 06:55:26.082: IP: s=<a href="http://172.16.1.4">172.16.1.4</a> (local), d=<a href="http://172.16.1.254">172.16.1.254</a> (Dialer0), len 100, sending<br> 03C2C9D0: 45000064 004E0000 E..d.N..<br>03C2C9E0: FF016028 AC100104 AC1001FE 080031FD ..`(,...,..~..1}<br>03C2C9F0: 00130000 00000000 015E4ADC ABCDABCD .........^J\+M+M<br>03C2CA00: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br> 03C2CA10: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br>03C2CA20: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br><br><br> 1 06:55:26.082: IP: s=<a href="http://172.16.1.4">172.16.1.4</a> (local), d=<a href="http://172.16.1.254">172.16.1.254</a> (Dialer0), len 100, sending<br> 03C2C9D0: 45000064 004E0000 E..d.N..<br>03C2C9E0: FF016028 AC100104 AC1001FE 080031FD ..`(,...,..~..1}<br>03C2C9F0: 00130000 00000000 015E4ADC ABCDABCD .........^J\+M+M<br>03C2CA00: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br> 03C2CA10: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br>03C2CA20: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br>03C2CA30: ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M <br>*Mar 1 06:55:26.086: IP ARP: creating incomplete entry for IP address: <a href="http://172.16.1.254">172.16.1.254</a> interface Vlan1<br> *Mar 1 06:55:26.086: IP ARP: sent req src <a href="http://192.168.100.1">192.168.100.1</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Vlan1<br>*Mar 1 06:55:26.086: IP ARP: sent req src <a href="http://172.16.1.4">172.16.1.4</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Dialer0<br>*Mar 1 06:55:27.086: IP ARP: sent req src <a href="http://192.168.100.1">192.168.100.1</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Vlan1<br> *Mar 1 06:55:27.086: IP ARP: sent req src <a href="http://172.16.1.4">172.16.1.4</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Dialer0.<br>*Mar 1 06:55:28.086: IP ARP: sent req src <a href="http://192.168.100.1">192.168.100.1</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Vlan1<br>*Mar 1 06:55:28.086: IP ARP: sent req src <a href="http://172.16.1.4">172.16.1.4</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Dialer0<br> *Mar 1 06:55:29.086: IP ARP: sent req src <a href="http://192.168.100.1">192.168.100.1</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Vlan1<br>*Mar 1 06:55:29.086: IP ARP: sent req src <a href="http://172.16.1.4">172.16.1.4</a> 0018.1849.c9ee,<br> dst <a href="http://172.16.1.254">172.16.1.254</a> 0000.0000.0000 Dialer0<br>*Mar 1 06:55:29.086: IP: s=<a href="http://172.16.1.4">172.16.1.4</a> (local), d=<a href="http://172.16.1.254">172.16.1.254</a> (Dialer0), len 100, encapsulation failed<br> 03C2C9D0: 45000064 004E0000 E..d.N..<br>03C2C9E0: FF016028 AC100104 AC1001FE 080031FD ..`(,...,..~..1}<br>03C2C9F0: 00130000 00000000 015E4ADC ABCDABCD .........^J\+M+M<br>03C2CA00: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br> 03C2CA10: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br>03C2CA20: ABCDABCD ABCDABCD ABCDABCD ABCDABCD +M+M+M+M+M+M+M+M<br><br><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">cisco-nas mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:cisco-nas@puck.nether.net">cisco-nas@puck.nether.net</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="https://puck.nether.net/mailman/listinfo/cisco-nas">https://puck.nether.net/mailman/listinfo/cisco-nas</a></div> </blockquote></div><br></div>
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