11-17-2022 04:55 AM
Hi,
I am new to packet tracer so please bear with me. I am testing out this simple network, but it seems to fail. I have rip routing enabled, so i'm not sure if i need static routing as well. Thanks!
Configurations:
Pc:
FastEthernet0 Connection:(default port)
Connection-specific DNS Suffix..:
Physical Address................: 00D0.FF6E.8752
Link-local IPv6 Address.........: FE80::2D0:FFFF:FE6E:8752
IP Address......................: 100.100.100.3
Subnet Mask.....................: 255.0.0.0
Default Gateway.................: 100.100.0.21
DNS Servers.....................: 0.0.0.0
DHCP Servers....................: 0.0.0.0
DHCPv6 Client DUID..............: 00-01-00-01-C2-A4-16-C4-00-D0-FF-6E-87-52
MAster:
GigabitEthernet0/0 100.100.0.21 YES manual up up
GigabitEthernet0/1 10.10.10.40 YES manual up up
Serial0/0/0 unassigned YES unset administratively down down
Serial0/0/1 unassigned YES unset administratively down down
Vlan1 unassigned YES unset administratively down down
Gateway of last resort is 10.10.10.41 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/8 is directly connected, GigabitEthernet0/1
L 10.10.10.40/32 is directly connected, GigabitEthernet0/1
100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 100.0.0.0/8 is directly connected, GigabitEthernet0/0
L 100.100.0.21/32 is directly connected, GigabitEthernet0/0
S* 0.0.0.0/0 [1/0] via 10.10.10.41
R1
GigabitEthernet0/0 100.100.100.41 YES manual up up
GigabitEthernet0/1 10.10.10.41 YES manual up up
Serial0/0/0 unassigned YES unset administratively down down
Serial0/0/1 unassigned YES unset administratively down down
Vlan1 unassigned YES unset administratively down
Gateway of last resort is 10.10.0.5 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/8 is directly connected, GigabitEthernet0/1
L 10.10.10.41/32 is directly connected, GigabitEthernet0/1
100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 100.0.0.0/8 is directly connected, GigabitEthernet0/0
L 100.100.100.41/32 is directly connected, GigabitEthernet0/0
S* 0.0.0.0/0 [1/0] via 10.10.0.5
[1/0] via 10.10.10.5
ISP
GigabitEthernet0/0 100.100.100.11 YES manual up up
GigabitEthernet0/1 10.10.10.120 YES manual up up
Serial0/0/0 unassigned YES unset administratively down down
Serial0/0/1 unassigned YES unset administratively down down
Vlan1 unassigned YES unset administratively down down
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/8 is directly connected, GigabitEthernet0/1
L 10.10.10.120/32 is directly connected, GigabitEthernet0/1
100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 100.0.0.0/8 is directly connected, GigabitEthernet0/0
L 100.100.100.11/32 is directly connected, GigabitEthernet0/0
Server
FastEthernet0 Connection:(default port)
Connection-specific DNS Suffix..:
Physical Address................: 0009.7C65.54CC
Link-local IPv6 Address.........: FE80::209:7CFF:FE65:54CC
IP Address......................: 10.10.10.5
Subnet Mask.....................: 255.0.0.0
Default Gateway.................: 10.10.10.120
DNS Servers.....................: 0.0.0.0
DHCP Servers....................: 0.0.0.0
DHCPv6 Client DUID..............: 00-01-00-01-11-82-67-EA-00-09-7C-65-54-CC
Solved! Go to Solution.
11-17-2022 09:41 PM - edited 11-18-2022 11:06 AM
Problem is that you have so called dis-contiguous network with 100.100.100.x/8 (100.0.0.0/8) on right of R1 and left as well. Same thing with 10.0.0.0/8 off R1. it is on both sides;going from left to right we have
100.0.0.0/8 , then 10.0.0.0/8, then R1 has 10.0.0.0/8 to left and 100.0.0.0/8 to right side. then 100.0.0.0/8 and
10.0.0.0/8 on ISP.
this created major problems with RIP version 1 which was one of reasons for update of RIP to version 2. also , no auto-summary should help but it does not in your case.
Based on above findings, change networks and keep 100.0.0.0/8 of left of R1 and 10.0.0.0 on right side of R1. perhaps You could also change mask for class A making other class networks.
ip default-gateway 10.10.10.41 is wrong and not needed. also default-information originate does not do anything in your case.
Regards, ML
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11-17-2022 04:19 PM
cannot see topo, pic too small. it's easier if you attach your file here; You can attach your PT file but it must be in a zip format.
Regards, ML
**Please Rate All Helpful Responses **
11-17-2022 05:57 PM
11-17-2022 09:41 PM - edited 11-18-2022 11:06 AM
Problem is that you have so called dis-contiguous network with 100.100.100.x/8 (100.0.0.0/8) on right of R1 and left as well. Same thing with 10.0.0.0/8 off R1. it is on both sides;going from left to right we have
100.0.0.0/8 , then 10.0.0.0/8, then R1 has 10.0.0.0/8 to left and 100.0.0.0/8 to right side. then 100.0.0.0/8 and
10.0.0.0/8 on ISP.
this created major problems with RIP version 1 which was one of reasons for update of RIP to version 2. also , no auto-summary should help but it does not in your case.
Based on above findings, change networks and keep 100.0.0.0/8 of left of R1 and 10.0.0.0 on right side of R1. perhaps You could also change mask for class A making other class networks.
ip default-gateway 10.10.10.41 is wrong and not needed. also default-information originate does not do anything in your case.
Regards, ML
**Please Rate All Helpful Responses **
11-18-2022 04:38 AM
Hi! changing the networks seemed to fix it. Thanks for your help!
11-18-2022 11:06 AM
np, btw, not a PT bug.
11-17-2022 08:47 PM
TS steps:1 ping default gateway, then trace your destination to see problem. both end hosts get to default gateway (d.g) routers but not beyond. next step would be pings/trace from those d.g. routers. I think that problem seems to be on R1; its pointing wrong way. it says to reach PC use GigabitEthernet0/0 - wrong! and vice versa. not sure why yet.
Regards, ML
**Please Rate All Helpful Responses **
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