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Line Protocol Down
Both of those ports have something plugged into them. Your understanding is correct. And yes, FastEthernet2 has an L2 connectivity problem. CCNP, CCDP, CCIP, JNCIS-SEC, JNCIA -
IPv6 config
FE80's are link-local addresses, similar to the IPv4 APIPA range of 169.254.0.0/16. A router should not route between link-local networks. This is NOT the same as a site-local scope address, (eg: 172.16.0.0/12). IPv6 used to have a site-local private range (FEC0 prefix), though they got rid of... -
cisco 6509 commands
I don't think there is a right answer for active/standby versus active/active. There are tradeoffs, and I think really it depends on the sitaution. CCNP, CCDP, CCIP Core Network Planner, ISP -
Need help with CIDR
If the goal is summarization, "summarize 10.0.0.8-10.0.0.11" is a fair-game question, and the range is correctly summarized as 10.0.0.8/30 in CIDR notation. I don't think the question is too vague, but it's important to note that the notation is not only used for subnet assignment, but for...- Quadratic
- Post #12
- Forum: Technical certification and testing
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Need help with CIDR
You're effectively correct on that last question, though in CIDR notation it would be 41.220.236.8/30. Also CIDR is not a verb. :) I'm not sure what you mean by "order of 64". What you are doing is taking bits out of once side and into the other (between network address and host address). a /32...- Quadratic
- Post #6
- Forum: Technical certification and testing
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cisco 6509 commands
I don't really understand what is being asked here. What is meant by "reset the active and secondary root for each vlan, without change the priority in the hsrp pvst configuration"? While they should always be in sync (your STP root bridges should map to your HSRP Active gateways), techincally... -
Network slowness
Wait, how many switches do you have in this topology? What version(s) of spanning tree are they all running? Are they ALL running RPVST+ as that one is, or are there MST/VST instances out there? Is this a multi-vendor environment? Do you have a general diagram of the switches in this network... -
Network slowness
I assume all those port-channel interfaces are facing servers, from your descriptions? Are there any cases where multiple port channels exist between the same server and the switch? By "storm", they're probably referring to a broadcast storm, which is what I'd also suspect. Are any of your... -
Network slowness
Was this wireshark trace done DURING a network slowdown? Also what is it that is logging into the switch via HTTPS several times a second? Also, while probably not related to the slowdown I can see from the logs that you've got a duplicate IP detected (192.168.0.2) on vlan 5. Could you do a... -
Open multiple ports on 3560
A 3560 doesn't firewall traffic by default, though it's a multilayer switch and could potentially do so. Assuming you are running this as a multilayer switch, and you're trying to define an ACL to permit any source to reach those specific destinations, and you only want to restrict access for... -
VPN can't access local IP with Port
Can you confirm that the router first has IP connectivity to both the client and the web server (eg: ping tests)? If so, when attempting that example session you described, do you see any bindings for that server address if you do a "show ip nat translations", to confirm the port mappings are in... -
Need help with CIDR
You're really just summarizing an address range. CIDR is a notation, but this is really just plain old subnetting. For your second example (the first was corrected answered above, /29): 66.240.192.0 - 66.240.255.255 You can see the first two octets are identical, so you know if you broke...- Quadratic
- Post #3
- Forum: Technical certification and testing
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Network slowness
So the 3750's are *stacked*, and are acting as L3 gateway for the servers... Logically they're one switch from an STP standpoint, so less loop potential there. Are you seeing any "mac flapping" or duplicate mac address errors in the logs? Are you seeing anything of note with a "show log"... -
6509 cannot see network
He said the "protocol" was down, implying the link is in an up/down state, physical up with line protocol in down state. Is that correct? CCNP, CCDP, CCIP Core Network Planner, ISP -
Network slowness
On baddos's point, I'd try digging through your STP configuratuion to make sure there's no potential for layer 2 loops (eg: a single server that is bridging traffic between two NICs towards two switches without spanning tree could do it). Since it's intermittent, and the WAN has been ruled out... -
QoS on the Internet
I wouldn't normally suggest voice over an IPSec tunnel, for the reasons above regarding QoS over the Internet. It's definitely possible to do, though if you want a guarantee on data rates and QoS you'd need an alternate WAN solution from a service provider. I would view it as more of a last... -
Port Forward not Working
Also why hace you disabled cef? Unless there was a good reason, consider also adding "ip cef" from global config. CCNP, CCDP, CCIP Core Network Planner, ISP -
Port Forward not Working
Why do you have a permit any in ACL 1? if it's defining your NAT pool, you should remove that line. After that, try to make use of that port-forwarding rule and do a "show ip NAT translations | include 10.22.100.6". Are there any translations there at all? CCNP, CCDP, CCIP Core Network... -
6509 cannot see network
Correct vipergg. Based on the config shown on Gi3/1 they are defaulting to routed interfaces. "switchport" as a command should be added, then 'swichport mode access'. SVI interface for vlan 1 would have been down because none of the ports were switchport, thus none were in vlan 1. Once you get... -
for burtsbees, lerdalt, Cluebird, and OzzieGeorge
I still have to disagree Burt. All things being equal, a CCNP simply trumps a pair of CCNAs. Three, and you could argue diversity. Also you guys are all way older than me. CCNP, CCDP, CCIP Core Network Planner, ISP- Quadratic
- Post #17
- Forum: Technical certification and testing
