need help

[sivared0001]

Part 1:
------------------------------
we have r5 configuration below
Copy the R5 router configuration and paste on your R5 router

Note::
R5 is already configured...you will not change anything on R5 router


Configure RIP Version 2 (RIPv2) between R1 and R5

R1 must accept from R5 only the following prefixes
199.172.4.0/24
199.172.6.0/24
199.172.12.0/24
199.172.14.0/24
means that when R1 receive the network from R5 it get only 4 network from R5.

- **- Use Standard ACL with a single entry

let me clear more because i dont want you made this mistake.
Example
access-list 10 deny 10.0.0.0 0.255.255.255---->This is single entry access list

and if you do this

access-list 10 deny 10.0.0.0 0.255.255.255
access-list 10 deny 20.0.0.0 0.255.255.255
---->This is multi entry access list

So you use single entry list----Remember this otherwise it will reflect other router connectivity..

- Disable Auto Summarization

Part 2:
---------------------------------------------------------

configure the OSPF according to the diagram and make all connectivity.

R4 Router can ping these network

199.172.4.0/24
199.172.6.0/24
199.172.12.0/24
199.172.14.0/24

# the above one is my task, i copied and pasted R5 configurarion in R5 and we have not to do anything in R5.

# i configured ospf, virtual-links and rip v2 according to the topology and also redistributed ospf into rip and vice versa.

# i have to ping these networks 199.172.4.0/24, 199.172.6.0/24, 199.172.12.0/24, 199.172.14.0/24 from R4.these networks are R5 secondary loopback addresses.

# i can able to ping F0/0 of R1 that is connected to R5 from R4 but i am not able to ping F0/0 interface of R5 from R4.

# the problem is

1.i do not know where to use Standard ACL with single entry.

2.i can ping R5 secondary loopback addresses from R1 but not from R4. i checked the routing table of R5 it does not have ospf networks.

please find the R5 configuration file below

[Georg Pauwen]

Hello,

for the first part, you need to summarize the networks and use the access list below:

access-list 1 permit 199.172.0.0 0.0.15.255

[Georg Pauwen]

Also, post the full running configurations (sh run) of all routers...

[sivared0001]

now i have these R1 and r4 photos of routing information and the remaining all routers also have the same type of routes as like in R4.

r2,r3,r4 can ping the R1 interface that connected to r5 but not able to ping R5 interface

R1 has all the networks in the topology.

R1 only communicating with r5 and not from any other router (r2,r3,r4)

[sivared0001]

on what router

[Flavio Miranda]

Hi

 You dont have OSPF enable on R5. You do have EIGRP, RIP and BGP.

And your EIGRP is mentioning an prefix llist that does not exist:

distribute-list prefix eigrp100 out

You need to create this ACL

.And, if this router must speak OSPF, you need to enable it with:

router ospf

Or you can redistribute OSPF in RIPV2 on Router 1.

[sivared0001]

I already redistributed ospf in to rip on router r1

[David Ruess]

Hello,

A few questions to help understand.

1. You have 3 routing protocols on R5. Is RIP the only one forming an adjacency (neighborship) with R1? If not then the lowest AD will win and RIP wont be used for network reachability since it has the highest AD.

2. Have you checked the routing table of R1 to see if its learning ALL of the RIP and OSPF routes you have selected from the network statements. Make sure R1 can see ALL of them (before you apply any ACLs or filters)

3. Can you provide the R1 "show run" and "show ip route" configuration. This is the point where everything converges from route filtering to redistribution.

Since you cant modify R5 (which would be better if you could) the distribute list needs to be applied to the incoming updates from R1's F0/0 interface. Before making any filtering changes make sure you have full reachability of ALL networks from RIP to OSPF that you eed to. If you apply anything it could make troubleshooting more difficult.

I used EIGRP because I was having issues with RIP but here is the syntax

conf t

ip access-list standard 1

permit 199.172.4.0 0.0.10.255

Then under the RIP router process:

distribute-list 1 in f0/0

Output from my device before distribute list:

Gateway of last resort is not set

150.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 150.1.5.0/24 is directly connected, GigabitEthernet0/0
L 150.1.5.1/32 is directly connected, GigabitEthernet0/0
150.100.0.0/24 is subnetted, 1 subnets
D 150.100.1.0 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.1.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.2.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.3.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.4.0/24 [90/130816] via 150.1.5.254, 00:35:33, GigabitEthernet0/0
D 199.172.5.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.6.0/24 [90/130816] via 150.1.5.254, 00:35:33, GigabitEthernet0/0
D 199.172.7.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.8.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.9.0/24 [90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.10.0/24
[90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.11.0/24
[90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.12.0/24
[90/130816] via 150.1.5.254, 00:35:33, GigabitEthernet0/0
D 199.172.13.0/24
[90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.14.0/24
[90/130816] via 150.1.5.254, 00:35:33, GigabitEthernet0/0
D 199.172.15.0/24
[90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
D 199.172.16.0/24
[90/130816] via 150.1.5.254, 00:03:17, GigabitEthernet0/0
Router#

After applying distribute list:

150.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 150.1.5.0/24 is directly connected, GigabitEthernet0/0
L 150.1.5.1/32 is directly connected, GigabitEthernet0/0
150.100.0.0/24 is subnetted, 1 subnets
D 199.172.4.0/24 [90/130816] via 150.1.5.254, 00:27:50, GigabitEthernet0/0
D 199.172.6.0/24 [90/130816] via 150.1.5.254, 00:27:50, GigabitEthernet0/0
D 199.172.12.0/24
[90/130816] via 150.1.5.254, 00:27:50, GigabitEthernet0/0
D 199.172.14.0/24
[90/130816] via 150.1.5.254, 00:27:50, GigabitEthernet0/0
Router#

This article will help when making discontinuous ACLs for route filtering

https://routerjockey.com/2010/05/19/using-discontiguous-wildcard-masks-in-acls/

-David

[sivared0001]

[David Ruess]

It looks like R1 is learning the routes it needs to from OSPF and RIP. can you provide the entire R1 "show run" command?

You can also apply the distribute list configured how I mentioned in my previous post and also where to apply it.

-David

[paul driver]

Hello

R1 is an asbr/abr, And Rtr4 having VL connection via area 16 to the ospf backbone (area0) should receive type 4/5 lsa for rtr 5 external rip routes.
Now for connectivity between ospf and rip you will need redistribution between those two routing domains and this can be accomplished in various ways.

However in your attachment of R5 you seem to have rip/eigrp and bgp active which isn't viable pertaining to the topology you have posted?