Taqdir, Interesting, I loaded the configs on Dynamips and it looks like the R2 just sends it out any interface with an IP address. Never noticed that before :)
On Tue, Sep 1, 2009 at 9:36 AM, Taqdir Singh <[email protected]> wrote: > Please find config and diagram again. > > > On Tue, Sep 1, 2009 at 9:04 PM, Bryan Bartik <[email protected]> wrote: > >> Taqdir, >> >> Send us the configs of all devices Taqdir. >> >> >> On Tue, Sep 1, 2009 at 9:28 AM, Taqdir Singh <[email protected]>wrote: >> >>> *R2#ping 172.16.10.1* >>> >>> Type escape sequence to abort. >>> Sending 5, 100-byte ICMP Echos to 172.16.10.1, timeout is 2 seconds: >>> !!!!! >>> Success rate is 100 percent (5/5), round-trip min/avg/max = 8/56/132 ms >>> *R2#sh ip route* >>> Default gateway is not set >>> >>> Host Gateway Last Use Total Uses Interface >>> ICMP redirect cache is empty >>> *R2#sh ip int brief* >>> Interface IP-Address OK? Method >>> Status Protocol >>> Serial0/0 unassigned YES unset administratively >>> down down >>> Serial0/1 unassigned YES unset administratively >>> down down >>> Serial0/2 unassigned YES manual administratively >>> down down >>> Serial0/3 172.32.1.2 YES manual >>> up up >>> R2# >>> >>> >>> >>> On Tue, Sep 1, 2009 at 7:59 PM, Bryan Bartik <[email protected]>wrote: >>> >>>> Taqdir >>>> >>>> Give us a "sho ip int brief" on R2... >>>> >>>> On Tue, Sep 1, 2009 at 7:00 AM, Taqdir Singh >>>> <[email protected]>wrote: >>>> >>>>> Please note , I am sitting on* router R2* and I am pinging from >>>>> there to loopback 172.16.10.1 which on router R0. >>>>> >>>>> *On router R2 - I have disabled ip routing*. then how come I am able >>>>> to ping loopback on router R0* even if there is no route in R2*? >>>>> >>>>> On Tue, Sep 1, 2009 at 6:15 PM, cyrus riobah <[email protected]>wrote: >>>>> >>>>>> Its never possible to be able to ping over a serial link (in fact a >>>>>> network on different subnets) without the routing involved. >>>>>> >>>>>> With the output of sh ip route on your R0, the statement ""S* >>>>>> 0.0.0.0/0 is directly connected, Serial0/0"" indicates that this is s >>>>>> static route readily configured to R0 hence makes it to ping anything >>>>>> connected to R0. >>>>>> >>>>>> Possibly, check all your router for a static route, S* indicates its >>>>>> existence. >>>>>> >>>>>> Regards >>>>>> >>>>>> Cyrus >>>>>> >>>>>> CCNP,CCDA,ARFE,WAAS,AWLANFE,XF >>>>>> >>>>>> On 9/1/09, Taqdir Singh <[email protected]> wrote: >>>>>> > Please see my attached diagram. >>>>>> > Just curious to know , how ping is successfull sitting on router R2 >>>>>> to >>>>>> > destination 172.16.10.1 though on R2 I have disabled ip routing and >>>>>> even >>>>>> > there is no default-gateway configured. >>>>>> > >>>>>> > Other curious thing I want to know - If i configure any loopback >>>>>> interface >>>>>> > on router R2.. and then try to ping 172.16.10.1 it is unsuccessfull. >>>>>> > >>>>>> > Could any1 please help whats going on here on router R2 ? >>>>>> > >>>>>> > R0#sh ip ro >>>>>> > Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP >>>>>> > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter >>>>>> area >>>>>> > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type >>>>>> 2 >>>>>> > E1 - OSPF external type 1, E2 - OSPF external type 2 >>>>>> > i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS >>>>>> level-2 >>>>>> > ia - IS-IS inter area, * - candidate default, U - per-user >>>>>> static >>>>>> > route >>>>>> > o - ODR, P - periodic downloaded static route >>>>>> > >>>>>> > Gateway of last resort is 0.0.0.0 to network 0.0.0.0 >>>>>> > >>>>>> > 172.16.0.0/24 is subnetted, 1 subnets >>>>>> > C 172.16.10.0 is directly connected, Loopback0 >>>>>> > 10.0.0.0/24 is subnetted, 1 subnets >>>>>> > C 10.1.1.0 is directly connected, Serial0/0 >>>>>> > S* 0.0.0.0/0 is directly connected, Serial0/0 >>>>>> > R0#echo reply rcvd, src 172.16.10.1, dst 172.32. >>>>>> > R0# >>>>>> > ================ >>>>>> > >>>>>> > R1#sh ip ro >>>>>> > Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP >>>>>> > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter >>>>>> area >>>>>> > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type >>>>>> 2 >>>>>> > E1 - OSPF external type 1, E2 - OSPF external type 2 >>>>>> > i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS >>>>>> level-2 >>>>>> > ia - IS-IS inter area, * - candidate default, U - per-user >>>>>> static >>>>>> > route >>>>>> > o - ODR, P - periodic downloaded static route >>>>>> > >>>>>> > Gateway of last resort is not set >>>>>> > >>>>>> > 172.16.0.0/24 is subnetted, 1 subnets >>>>>> > S 172.16.10.0 is directly connected, Serial0/1 >>>>>> > 172.32.0.0/24 is subnetted, 1 subnets >>>>>> > C 172.32.1.0 is directly connected, Serial0/2 >>>>>> > 10.0.0.0/24 is subnetted, 1 subnets >>>>>> > C 10.1.1.0 is directly connected, Serial0/1 >>>>>> > R1# >>>>>> > ===================== >>>>>> > >>>>>> > R2#sh ip ro >>>>>> > Default gateway is not set >>>>>> > >>>>>> > Host Gateway Last Use Total Uses >>>>>> Interface >>>>>> > ICMP redirect cache is empty >>>>>> > R2#ping 172.16.10.1 >>>>>> > >>>>>> > Type escape sequence to abort. >>>>>> > Sending 5, 100-byte ICMP Echos to 172.16.10.1, timeout is 2 seconds: >>>>>> > !!!!! >>>>>> > Success rate is 100 percent (5/5), round-trip min/avg/max = >>>>>> 12/48/136 ms >>>>>> > R2# >>>>>> > >>>>>> > >>>>>> > -- >>>>>> > Taqdir Singh >>>>>> > CCNP- (R), CCNA >>>>>> > 09911709496 >>>>>> > >>>>>> > Do today what others won't so you can live tomorrow as others can't >>>>>> > >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Taqdir Singh >>>>> CCNP- (R), CCNA >>>>> 09911709496 >>>>> >>>>> Do today what others won't so you can live tomorrow as others can't >>>>> >>>>> _______________________________________________ >>>>> For more information regarding industry leading CCIE Lab training, >>>>> please visit www.ipexpert.com >>>>> >>>>> >>>> >>>> >>>> -- >>>> Bryan Bartik >>>> CCIE #23707 (R&S), CCNP >>>> Sr. Support Engineer - IPexpert, Inc. >>>> URL: http://www.IPexpert.com <http://www.ipexpert.com/> >>>> >>> >>> >>> >>> -- >>> Taqdir Singh >>> CCNP- (R), CCNA >>> 09911709496 >>> >>> Do today what others won't so you can live tomorrow as others can't >>> >> >> >> >> -- >> Bryan Bartik >> CCIE #23707 (R&S), CCNP >> Sr. Support Engineer - IPexpert, Inc. >> URL: http://www.IPexpert.com <http://www.ipexpert.com/> >> > > > > -- > Taqdir Singh > CCNP- (R), CCNA > 09911709496 > > Do today what others won't so you can live tomorrow as others can't > -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
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