Solved: How to Inter-connect vlans on cisco router with etherswitch installed (NM-16ESW)? - Page 2

ghyacin · ‎01-06-2017

Hey,

I'm pretty new to Cisco commercial equipment's but I'll get straight to the point.

I have a Cisco 2650 with a NM-16ESW module installed, I have vlan 10, 30, 80, 99, and 150 setup. I have a DHCP server handling IP addresses for all the vlans according to the ports they are set to. This is done by assigning IP addresses to each vlan along with a IP helper-address to the DHCP server.

Vlan 10 are the servers, vlan 30 are the pc's, etc... I cannot communicate between the vlans and everything I have read has a separate router and switch setup which doesn't work for me.

I have heard about bridge-group but found very little on the subject, can anyone please share their experience and expertise on the matter.

Thanks

ghyacin · ‎01-09-2017

That is correct I can ping the DHCP server and the IP's of each vlan interface but nothing else, I have thought of the issue being in the DHCP server it's self, but found nothing wrong.

I have a PBX server and another client running on vlan 10 and cannot be pinged from vlan 30.

sh ip route:

   10.0.0.0/24 is subnetted, 2 subnets
C       10.10.10.0 is directly connected, Vlan10
C       10.10.30.0 is directly connected, Vlan30

sh arp:

Protocol Address          Age (min) Hardware Addr   Type   Interface
Internet 10.10.10.10             0   001e.4ff3.81e9 ARPA   Vlan10
Internet 10.10.10.11           220   001e.4ff3.81e9 ARPA   Vlan10
Internet 10.10.30.1              0   5c26.0a0e.5cfe ARPA   Vlan30
Internet 10.10.150.254           -   000b.4637.9240 ARPA   Vlan150
Internet 10.10.99.254            -   000b.4637.9240 ARPA   Vlan99
Internet 10.10.80.254            -   000b.4637.9240 ARPA   Vlan80
Internet 10.10.30.254            -   000b.4637.9240 ARPA   Vlan30
Internet 10.10.10.254            -   000b.4637.9240 ARPA   Vlan10

ghyacin · ‎01-09-2017

I found the issue, the device I was ping was the PBX server and that is what is not responding, all other devices are responding I definitely appreciate the help I received and sorry for the simple resolution.

Richard Burts · ‎01-09-2017

Thanks for letting us know that you have got the problem solved. In the end it turned out to be a simple issue with a single device. Along the way we might have solved an issue and at least good lessons were learned about enabling ip routing (and that by default it does not show up in the config when it is enabled) and lessons about vlan interfaces and what causes them to be up or to be down, and that we can not route for an interface and its subnet if the interface is down. So it has been a worthwhile discussion. These forums are excellent places to learn about networking and I hope to see you continue to be active in the forums.

HTH

Rick

HTH

Rick

Richard Burts · ‎01-09-2017

So that we have a clear understanding of the current status would you post the output of the commands show ip interface brief and of show ip route done while hosts are connected and active in at least two vlans? It might also be helpful if you post the output of the command show arp.

Are you saying that from a device in the PC vlan that you are successful in ping to the DHCP server (which is in the server vlan)? If so that is a demonstration that the router is routing traffic between vlans. If you are not able to ping other devices in the server vlan than it is something other than a routing problem.

While I agree with Sam that sometimes it helps to clear the config and start over I am not sure that we are at that point for this issue.

HTH

Rick

HTH

Rick

Sam Smiley · ‎01-07-2017

There is something very strange about this sh ver: the model number shows to be a 2650. However the 2650 maxed out at 16 MB F/64 MB DRAM. The IOS naming was also different, the naming shown in your IOS didn't come along until the 2600XM devices. I went back to look at old routers and here is what I found:

Cisco 2611 sh ver:

Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IK9O3S3-M), Version 12.3(15a), RELEASE SOFTWARE (
fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Thu 21-Jul-05 19:55 by dchih
Image text-base: 0x80008098, data-base: 0x81A13784

ROM: System Bootstrap, Version 11.3(2)XA3, PLATFORM SPECIFIC RELEASE SOFTWARE (f
c1)
ROM: C2600 Software (C2600-IK9O3S3-M), Version 12.3(15a), RELEASE SOFTWARE (fc2)

RDO-2611 uptime is 7 hours, 0 minutes
System returned to ROM by reload at 13:55:30 EST Mon Aug 20 2007
System restarted at 13:59:24 EST Mon Aug 20 2007
System image file is "flash:c2600-ik9o3s3-mz.123-15a.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco 2611 (MPC860) processor (revision 0x202) with 61440K/4096K bytes of memory
.
Processor board ID JAB02350303 (2410721875)
M860 processor: part number 0, mask 32
Bridging software.
X.25 software, Version 3.0.0.
2 Ethernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Cisco 2650XM sh ver:

Cisco IOS Software, C2600 Software (C2600-ADVENTERPRISEK9-M), Version 12.4(19),
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Fri 29-Feb-08 19:23 by prod_rel_team

ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)

RNT-2650XM uptime is 9 minutes
System returned to ROM by reload at 14:46:03 EDT Thu Nov 24 2011
System restarted at 14:50:21 EDT Thu Nov 24 2011
System image file is "flash:c2600-adventerprisek9-mz.124-19.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco 2650XM (MPC860P) processor (revision 1.0) with 118784K/12288K bytes of mem
ory.
Processor board ID JAD06310H2O
M860 processor: part number 5, mask 2
17 FastEthernet interfaces
1 Serial interface
1 ATM interface
32K bytes of NVRAM.
49152K bytes of processor board System flash (Read/Write)

This may be nothing but it is curious that the model shows to be 2650 rather than 2650XM. Everything else in the sh ver matches the 2650XM except the model. I would like to see a sho inv output. If the device is actually a 2650 I don't think it will run the 12.4 IOS properly..

ghyacin · ‎01-07-2017

I issued the IP routing command, then copy run start, then reload. After it reloaded I ran sh IP route and still the same in the packet tracer I removed the IP addresses and vlans and re-added them after the IP routing and reboot to no avail.

I might try having the router deal with the DHCP as I saw in your config.