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Richard Burts commented on Keep interface up if not in route table in WAN, Routing and Switching 1 week ago

In that case I will repeat my questions about what kind of interfaces these are. And repeat my...

Richard Burts commented on Keep interface up if not in route table in WAN, Routing and Switching 1 week ago

In your diagram it appears that the routes and the ping are from FG. Is that the case? Is your...

Richard Burts commented on serial port problem in WAN, Routing and Switching 1 week ago

There is not enough information here for us to accurately identify the issue. Can you provide the...

Richard Burts commented on Different EoS/EoL Dates for Same Device? in WAN, Routing and Switching 1 week ago

Paul I agree that this is confusing. What I believe that I am seeing is that the second URL is...

Richard Burts commented on OSPF Neighbors not forming unless network for router interfaces included in LAN, Switching and Routing 1 week ago

Matt Yes I see where the response fro cwhite did explain some things that I assumed in my response...

Richard Burts commented on VPN login failes in VPN 1 week ago

If you are getting a prompt for login credentials that seems to indicate that you are communicating...

Richard Burts commented on OSPF Neighbors not forming unless network for router interfaces included in LAN, Switching and Routing 1 week ago

I do not understand your question. I think it is clear that OSPF works if you have two network...

Richard Burts commented on NAT on ASA in WAN, Routing and Switching 1 week ago

I agree that Karsten has a much better solution. But I thought that the solution with per subnet...

Richard Burts commented on Keep interface up if not in route table in WAN, Routing and Switching 1 week ago

It would be easier to answer your question if we knew more about your environment. What kind of...

Richard Burts commented on When use telnet/ssh then switch stop responding even ping does not work in WAN, Routing and Switching 1 week ago

I am not sure why it would behave differently when you attempt telnet/ssh from the connected switch...

Richard Burts commented on Need Help Configuring Cisco 1841 Router in LAN, Switching and Routing 1 week ago

According to the post when you started a new discussion on this issue the router interface is 192....

Richard Burts commented on Two WAN links bandwidth need to be use as single bandwidth in WAN, Routing and Switching 1 week ago

You have not told us what kind of WAN links these are and that might make a difference in how we...

Richard Burts commented on Need Help Configuring Cisco 1841 Router in LAN, Switching and Routing 1 week ago

You have consistently posted this ip dhcp pool TheDeadPoolnetwork 192.168.0.0 255.255.255.0 note...

Richard Burts commented on Need Help Configuring Cisco 1841 Router in LAN, Switching and Routing 1 week ago

I agree with John's suggestions. There is nothing in the configuration that needs an extended...

Richard Burts commented on Cannot type command "boot-start-marker" in ASK1006 in WAN, Routing and Switching 1 week ago

The lines boot-start and boot-end are automatically inserted by the IOS parser and are not user...

Richard Burts commented on GRE support for 3650 and 3850 switches in WAN, Routing and Switching 1 week ago

I was not aware that GRE was supported on these switches. But if it is supported then I would...

Richard Burts commented on OSPF extrnal network tie breaker in WAN, Routing and Switching 2 weeks ago

I agree that we do not have enough information to figure out what is going on here. One drawing...

Richard Burts commented on Anyconnect integration with AD using ldap protocol in VPN 2 weeks ago

You might also want to take a look at this link http://www.cisco.com/c/en/us/td/docs/security/asa/...

Richard Burts commented on What's the prupose of "ip route null0"? in Other Network Infrastructure Subjects 2 weeks ago

Joseph makes a good point that in terms of route selection that there is a single BGP process...

Richard Burts commented on OSPF extrnal network tie breaker in WAN, Routing and Switching 2 weeks ago

I do not understand what is involved here. The original diagram showed R1 connecting through a...

Richard Burts commented on how to replace spanning tree or MLAG with ECMP? in LAN, Switching and Routing 2 weeks ago

Can I assume that when you mention MLAG that you are talking about multi chassis link aggregation...

Richard Burts commented on Cant copy from TFTP Server in LAN, Switching and Routing 2 weeks ago

As I read this discussion it seems to me that there are two things that might be responsible for...

Richard Burts commented on Routing choice in routing table in LAN, Switching and Routing 2 weeks ago

The symptoms described are a classic example of what happens when you have configured the router...

Richard Burts commented on Anyconnect integration with AD using ldap protocol in VPN 2 weeks ago

I have done an implementation using LDAP mapping as suggested by JP and it worked well. More...

Richard Burts commented on BGP advertisement over GRE tunnel in Other Security Subjects 2 weeks ago

Rizwan I worked with a customer who was starting a service to protect against DDOS that sounds...

Richard Burts commented on OSPF extrnal network tie breaker in WAN, Routing and Switching 2 weeks ago

The original post asks about a tie breaker for OSPF external routes which implies an assumption...

Richard Burts commented on Extended ACL telnet issue in LAN, Switching and Routing 2 weeks ago

It is quite true that with access-class it is not possible to restrict telnet access to a...

Richard Burts commented on I cannot ping to native VLAN hosts. ? in LAN, Switching and Routing 2 weeks ago

Thank you for this information. It does show clearly that the L3 switch does know about vlans 1, 20...

Richard Burts commented on WCCP redirects non-standar port in WAN, Routing and Switching 2 weeks ago

There is much about your situation that we do not know and which might help us to identify your...

Richard Burts commented on VPN in VPN 2 weeks ago

You have not given us much detail to work with. You say that you copied the config from the 1841 to...

Richard Burts commented on Cisco PIX 501 behind ASUS RT-AC1900 in VPN 2 weeks ago

Kris You are welcome. This was an interesting one to investigate and a subtle reason for the...

Richard Burts commented on Sg300 connectivity with router, no internet access from any of the VLAN in LAN, Switching and Routing 2 weeks ago

Jayesh Thank you for the additional information. What you have posted does show that NAT is...

Richard Burts commented on difference betwwen identity certificate and CA certificate in VPN 2 weeks ago

You are welcome. HTH Rick

Richard Burts commented on Cisco PIX 501 behind ASUS RT-AC1900 in VPN 2 weeks ago

Kris Thanks for the output. I wish it were a bit more informative. I looked through the config and...

Richard Burts commented on I cannot ping to native VLAN hosts. ? in LAN, Switching and Routing 2 weeks ago

Thank you for the information. It does show clearly that the vlan is allowed on the trunk and that...

Richard Burts commented on I cannot ping to native VLAN hosts. ? in LAN, Switching and Routing 2 weeks ago

1) show interface trunk - do this on both switches and post the output 2) show span and show span...

Richard Burts commented on Cisco PIX 501 behind ASUS RT-AC1900 in VPN 2 weeks ago

Kris Thanks for the debug output. It does show that negotiation is taking place but is not...

Richard Burts commented on Cisco PIX 501 behind ASUS RT-AC1900 in VPN 2 weeks ago

Kris Thanks for the debug output. It does show that negotiation is taking place but is not...

Richard Burts commented on difference betwwen identity certificate and CA certificate in VPN 2 weeks ago

Kelvin I do not want to be overly picky but do want to be very careful in answering your question...

Richard Burts commented on Unable to access ASA interface using SSH from remote LAN in VPN 2 weeks ago

If the sites are connected by a site to site VPN can you tell us what traffic is selected to go...

Richard Burts commented on Cisco PIX 501 behind ASUS RT-AC1900 in VPN 2 weeks ago

The captures do show two way ISAKMP traffic. So that is good. Perhaps you could run debug for...

Richard Burts commented on How to determine the amount of prepends to add to my route-map in WAN, Routing and Switching 2 weeks ago

I do not believe that there is a good way to determine how many prepends to use before you make the...

Richard Burts commented on IPSEC is UP but GRE tunnel showing DOWN in WAN, Routing and Switching 2 weeks ago

It would be easier to help you troubleshoot if we knew more about how you have configured it and...

Richard Burts commented on iBGP over GRE in WAN, Routing and Switching 2 weeks ago

I believe that I have seen it both ways but it is best to adjust mss on the physical interface....

Richard Burts commented on Sg300 connectivity with router, no internet access from any of the VLAN in LAN, Switching and Routing 2 weeks ago

Jayesh The most common cause of problems in accessing Internet resources is that Network Address...

Richard Burts commented on Nexus 7000 HSRP Gratuitous ARP in LAN, Switching and Routing 3 weeks ago

Yes. I really believe that the VM will learn the new MAC. The concept of timing out arp entries and...

Richard Burts commented on 2821 LAN Ports 0/0 and 0/1 are in down mode in LAN, Switching and Routing 3 weeks ago

I am glad that we were able to help and that you now have a better understanding of the issues....

Richard Burts commented on Nexus 7000 HSRP Gratuitous ARP in LAN, Switching and Routing 3 weeks ago

Thank you for the clarification. I believe that you will be able to make the change to implement...

Richard Burts commented on What's the prupose of "ip route null0"? in Other Network Infrastructure Subjects 3 weeks ago

Perhaps I am not understanding your question correctly. I thought that you were asking how IBGP...

Richard Burts commented on ASDM not working with ASA 5505 in LAN, Switching and Routing 3 weeks ago

Have there been recent changes that might impact ASDM? Changes might have been config changes or...

Bio

I have worked with Cisco equipment for 20 years. I've designed and supported small to large networks, as well as taught many Cisco courses. (I'm CCSI #94069 and originally certified in 1994). My background is primarily Route and Switch and my interests include security and VPN technology.
Originally, I started reading and posting to network forums as
one mechanism to help me ramp up for my CCIE certification (#4615 which I earned in 1999). Now I use the forums to help keep me sharp in various technical areas as well as to help others. I like contributing, and I find I can answer
a bunch of the questions quickly. For the 'harder' questions,
I personally get a great deal of satisfaction from digging into
topics that I haven't refreshed on for awhile.
I really enjoy working for Chesapeake Netcraftsmen, they are a
great group of fun and smart people (including 10 CCIEs).
We have consulting and training expertise in high-end routing
and design, switching, VoIP, QoS, MPLS, network management,
security, IP multicast, course and lab development, and other
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Richard Burts's Stats

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