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- About mfurnival
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Member since
01-24-2005
443
Posts
118
Helpful
46
Solutions
04-29-2015
04:28 AM
Can you also provide the output of show controllers from each device? And also a "show run interface Serial..." for each interface? Have you tried encapsulation HDLC?
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04-27-2015
08:48 AM
How about q in q tunnelling? http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/interfaces/configuration/guide/if_cli/if_qinq_tunnel.html This allows you to extend your VLAN infrastructure over a service provider network (essentially a trunk port over a WAN).
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04-23-2015
01:28 AM
I don't see why this would not work if both links terminate on 1 device at either end - the devices don't care what goes on inbetween. I would question why you want to do this though? Is there a specific requirement to extend the layer 2 boundary between these two sites. If not I would make them routed links and use equal cost load sharing to utilize both links.
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07-16-2014
03:57 AM
I want to set up a monitor session on an interface that is connected to a IP phone (not a Cisco one). I am just curious to understand how it works with the monitor session with regard to the VLAN tagged traffic on that port. So the phone will have a data VLAN and a voice VLAN and traffic on each VLAN will be tagged with a different VLAN identifier. So on my destination monitor session port will I see all traffic from both VLANs? I am not too worried about seeing the VLAN tags themselves and I don't care which VLAN specific packets are from - I really just want to make sure that I see everything. I am aware of the "encapsulation replicate" keyword on the monitor session which maintains the tagging when sent to the monitor destination and the issues around different OS (I am using Wireshark on Windows) stripping of 802.1q headers.
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07-10-2014
08:29 AM
Could it be that some of the devices are PCs / servers that are running host based firewalls that block ICMP?
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06-30-2014
08:24 AM
Yes, that is correct. Do a "show diag" and it will tell you which modules you have installed (if any).
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06-26-2014
08:46 AM
If you make changes like this you would have to change all of the clients' subnet masks too. The reason being that devices will wrongly consider devices with certain IP addresses to reside in their subnet.
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06-12-2014
08:06 AM
You didn't answer my questions: Does G0/2 show packets in and out of you do a "show interface G0/2"? Are you able to resolve the mac address of 24.242.182.181 (show arp | i 24.242.182.181)? I notice you have speed and duplex set to auto - have you tried hard setting them?
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06-11-2014
09:01 AM
Why not police the traffic at the switch interface level rather than the router?
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05-30-2014
08:39 AM
I put the dot1q config back in place and change the nat statement to be: ip nat inside source static tcp 192.168.10.10 23 10.10.10.1 23 extendable i.e. I referenced the actual public IP address rather than the interface and it worked again. Don't really understand why though...
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05-30-2014
08:10 AM
I simulated it again - the first time I did this I did not configure dot1q trunking on the LAN side. With dot1q trunking configured I replicate the same as what you see - the router and host can see each other but I cannot get all the way through from a host on the outside. A bit of wiresharking shows the SYN from the host on the outside goes through the router, the server returns a SYN / ACK but when it traverses the router the source address remains the same (192.168.10.10) rather than being translated to the router WAN interface IP adddress. Strangely, if I connect remove the dot1q from the router interface and just have both the router and the server as access ports in VLAN10 it works normally. No idea why this would be the case - is this something you can try?
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05-30-2014
05:52 AM
Because round trip time is one of the factors used in calculating throughput - higher latency = lower throughput. This link gives a great explanation: http://bradhedlund.com/2008/12/19/how-to-calculate-tcp-throughput-for-long-distance-links/
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05-30-2014
05:45 AM
Do "show ip arp" and post the result. Certainly sounds like a client side issue to me.
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05-30-2014
03:29 AM
I just labbed this up quickly in GNS3 and it worked OK using your config. Do you have a route on 192.168.10.10 that allows it to return the traffic back to wherever the RDP session is coming from? Can you run wireshark on the end host to see it if receives anything?
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04-29-2015
Can you also provide the output of show controllers from each device?And
also a "show run interface ...
04-27-2015
How about q in q
tunnelling?http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/in...
04-23-2015
I don't see why this would not work if both links terminate on 1 device
at either end - the devices ...
07-10-2014
Could it be that some of the devices are PCs / servers that are running
host based firewalls that bl...
06-30-2014
Yes, that is correct. Do a "show diag" and it will tell you which
modules you have installed (if any...
06-26-2014
If you make changes like this you would have to change all of the
clients' subnet masks too. The rea...
06-12-2014
You didn't answer my questions: Does G0/2 show packets in and out of you
do a "show interface G0/2"?...
05-30-2014
I put the dot1q config back in place and change the nat statement to
be:ip nat inside source static ...
05-30-2014
I simulated it again - the first time I did this I did not configure
dot1q trunking on the LAN side....
05-30-2014
Because round trip time is one of the factors used in calculating
throughput - higher latency = lowe...
Public Statistics
| Date Registered | 01-24-2005 06:36 AM |
| Date Last Visited | 08-18-2017 04:03 AM |
| Total Messages Posted | 443 |
| Total Helpful Votes Received | 118 |
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