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New Contributor

3400 router cant ping itself

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I have two routers connected via fractional t1. The router in the diagram R2 cant ping its Ethernet port 192.168.15.1 but it can ping its t1 port 192.168.1.2. when I attempt to ping 192.168.15.1 from the 192.168.10.0 segment it expires in transit at 192.168.1.2. I am seeking direction to solve. I want to eventually connect that segment to the internet.

mii-new-ip v2 q.jpg

ip subnet-zero

ip classless

ip routing

!

event-history on

no logging forwarding

logging forwarding priority-level info

no logging email

ip forward-protocol udp netbios-ns

ip forward-protocol udp netbios-dgm

ip forward-protocol udp netbios-ss

!

ip policy-timeout tcp all-ports 600

ip policy-timeout udp all-ports 60

ip policy-timeout icmp 60

!

!

!

ip dhcp-server pool

  network 156.144.15.0 255.255.255.0

  dns-server 12.159.248.1 12.159.248.2

  default-router 156.144.15.1

!

interface eth 0/1

  half-duplex

  speed 10

  ip address  156.144.15.1  255.255.255.0

  ip helper-address  156.144.14.255

  no shutdown

!

interface t1 1/1

  tdm-group 1 timeslots 1-24 speed 64

  no shutdown

!

interface ppp 1

  ip address  192.168.1.2  255.255.255.252

  no shutdown

  cross-connect 1 t1 1/1 1 ppp 1

!

ip route 0.0.0.0 0.0.0.0 192.168.1.1

!

no ip snmp agent

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Anonymous
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Re: 3400 router cant ping itself

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:

It sounds like one of the routers (or Internet device) does not have the proper routing statements or the PCs do not have the correct default-gateway.  In the Configuring PPP in AOS guide, example 3 on page 44 explains this network design and configuration.  I suggest you review it to make sure you have the proper configuration settings.

Another option, is to trace route from a PC and see where the trace fails.  This will assist you in determining which unit does not have the proper route table configured.

I hope that makes sense, but please do not hesitate to reply to this post with any additional questions or information.

Levi

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6 Replies
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Anonymous
Not applicable

Re: 3400 router cant ping itself

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:

Thank you for asking this question in the Support Community.  Is the configuration you posted above taken from the "R2" unit from the diagram?  If so, it appears the IP address is not configured for 192.168.15.1.  It appears to be configured for "ip address  156.144.15.1  255.255.255.0."  Do you know if that is just a mistake in the configuration example above?  If the IP address is actually 192.168.15.1, another thing to keep in mind is the physical interface has to be connected and "UP." 


Therefore, make sure you are pinging the correct IP address, and that the interface where that IP address is assigned is connected and "UP."

I hope that makes sense, but please do not hesitate to reply to this post with any additional questions or information.  I will be happy to help in any way I can.

Levi

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New Contributor

Re: 3400 router cant ping itself

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mii-new-ip v3 q.jpg

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New Contributor

Re: 3400 router cant ping itself

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Levi, you are correct. I uploaded the wrong diagram. I can now see both ports (ppp=192.168.1.2 & e 0/1 156.144.15.1) but I cannot access systems on the 156.144.15.0 subnet. nor can those systems see the internet.

New Contributor

Re: 3400 router cant ping itself

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Response posted.

Highlighted
Anonymous
Not applicable

Re: 3400 router cant ping itself

Jump to solution

:

It sounds like one of the routers (or Internet device) does not have the proper routing statements or the PCs do not have the correct default-gateway.  In the Configuring PPP in AOS guide, example 3 on page 44 explains this network design and configuration.  I suggest you review it to make sure you have the proper configuration settings.

Another option, is to trace route from a PC and see where the trace fails.  This will assist you in determining which unit does not have the proper route table configured.

I hope that makes sense, but please do not hesitate to reply to this post with any additional questions or information.

Levi

View solution in original post

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New Contributor

Re: 3400 router cant ping itself

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werked!!!! and thank you