Ronnie Royston
  • Member for 6 years, 7 months
  • Last seen more than a month ago
2 answers
1 votes
287 views
Cabling and Topology Confusion
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2 votes

The topology is independent of the framing type. Frame type is defined at the data link layer of the OSI model. Cable type is defined at the physical layer of the OSI model.

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186 views
Why does my router get kicked off network?
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2 votes

The new DSL router/modem has 2 interfaces - LAN and WAN. Out of the box, it is likely providing DHCP services on to the LAN (serving up IP addresses). You need to log in to the management GUI on ...

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1 answers
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2k views
Splitting up a flat network into VLANs
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Do you want to multi-home the access switch? You should, however this complicates the configuration. Since you did not specify this, I will assume you do not want to multi-home (a link to each core ...

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1 answers
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2k views
VLAN: No internet access
2 votes

You have a gateway (security appliance / router), a switch, and an access point. You want 4 VLANs - default, voice, video, and guest. You need to configure each of these VLANs with a unique subnet ...

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1 answers
3 votes
242 views
dmz and ip-phone on medium network
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Yes the IP phones plug into the wall jack and the computers then plug into (daisy chain) the IP phones. This reduces the Ethernet ports count, power and cooling cost, wiring cost, and has virtually ...

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3 answers
2 votes
6k views
Close port 80 & 443 on Cisco switch
1 votes

Modification of Layer3 and above services is typically done at the gateway/router as switches do not read into frames. So, you would apply an access control list, ACL, at the gateway. You would ...

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4 answers
3 votes
122 views
Terminals vs. Secure Access Servers?
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Terminal server describes this functionality of local console port access which allows you to power cycle and/or configure the box remotely. HP's iLOM ports offers this capability all baked in. Cisco'...

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3 answers
2 votes
5k views
GRE over IPsec between Juniper SRX100 and Fortigate 100D
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Respectfully, No. Stand the IPSec connection up. Then, if you need to create a GRE tunnel between other endpoints behind the IPSec peers, say from a pair of computers or something, simply configure ...

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2 answers
3 votes
1k views
Cisco 3825 Router - Dual WAN Failover?
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1 votes

Couple of things. First, the link may not go down so depending on link down to failover may not actually work. Second is NAT/PAT. Cisco has published a how to for exactly what you are looking to do. ...

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5 answers
1 votes
113 views
Is it possible to create a collaborative network?
1 votes

Your issue is not bonding links from several providers. You are in the middle of nowhere, or remote, as you put it. There's not going to be several providers out there. You simply need a single ...

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2 answers
2 votes
106 views
Can you nest Private Branch Exchanges?
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Nesting is not a commonly used term in telephony. Extension numbers, aka directory numbers, or direct inward dial numbers, are defined in what is called the dial plan. In terms of routing calls ...

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1 answers
2 votes
396 views
What is the maximum crypto map sequence number in IOS-XE?
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1 votes

65535? This is a csr1000v and what it said was:

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3 votes
5k views
How are permit and deny in access lists and route maps evaluated?
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Access Lists specify particular traffic. Policy-Based Routing is a feature for overriding the routing table / forwarding mechanism for all traffic matching an access list. A couple of key points: ...

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78 views
Cisco 9971 connected to Cisco 3550
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1 votes

Probably an inline power issue. Phone Specs says IEEE Power over Ethernet 802.3af and 802.3at supported, class 4. The 9971 is compatible with both class 3 and class 4 IEEE PoE switch blades ...

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79 views
How can I spoof a UK caller ID from the US?
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It depends on your PSTN provider. Some will allow you to put anything in the 'calling number' parameter during call setup. Usually though, they will filter out spam. However, you might be able to ...

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1 answers
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2k views
How can I ping from the cisco switch to host on one vlan but not another vlan?
1 votes

A missing default gateway on an IP endpoint can cause this. Also, the source address of the ping can cause this. If you just type ping and press enter you'll get options including the ability to ...

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3 answers
2 votes
177 views
Can someone tell me how to make this show cmd work? (want to see what ports we can disconnect)
1 votes

show interface history To display histograms of interface utilization, use the showinterfacehistory command in privileged EXEC mode. show interface [ type number ] history [ all | 60sec | 60min | ...

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2 answers
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376 views
How do I bulk change admin user passwords on my SonicWALL?
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Use TACACS+ for admin access to your networking devices. That's the tool for the job. However, those brand of firewalls may not support it. I did find a RADIUS setup guide. https://support....

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4 answers
3 votes
998 views
Syslog severity level to 5 + ACL BLOCKED log
1 votes

Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 Troubleshooting, Fault Management, and Logging You just finish your standard ACL statement with the log keyword. The level of ...

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74 views
Network building software
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1 votes

See GNS3. Also, look at Oracles VirtualBox which allows you to stand up multiple virtual routers such as Cisco's CSR 1000v or VyOS on a PC or laptop.

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2 answers
2 votes
9k views
Meraki blocking some of Google (and this is undesired)
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Both of those IP addresses resolve to iad30s07-in-f14.1e100.net (using nslookup). Also, Why would some machines resolve to one while others to the other (unless you have multiple locations, maybe)? ...

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2 answers
1 votes
2k views
How to fix this messed up routing scenario with two IP's from same subnet on distinct WAN's?
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Fair question, but it's way too wordy. Basically, change the IP addresses so that they don't overlap. That's the answer. Just do it. There is no sense in some bandaid NAT hack to allow it to ...

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2 answers
1 votes
103 views
Need an estimate of the max power density
1 votes

I think you'd be better off assuming these are not plastic/polymer since yellow = single mode = long haul = glass. See Plastic optical fiber the IEEE has not yet passed any of the proposals into a ...

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1 answers
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809 views
3Com 5500G EI Switch Stack Configuration
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It depends which one is the "management device". Switch 5500 Family Configuration Guide.

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5 answers
3 votes
842 views
Which kind of connection do i need for BGP peering?
1 votes

You must have IP connectivity to the BGP peer. It is unnecessary for the BGP peer to be adjacent; it can be several hops away.

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4 answers
1 votes
3k views
Configuring 2 layer 3 switch with VLAN
1 votes

Get rid of VLAN 30 called "link". It's not necessary and is complicating your config. Normally, one does inter-VLAN routing on the main/core switch only. In such a topology, you configure ...

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2 answers
2 votes
171 views
Simple ACL question
1 votes

Configure Commonly Used IP ACLs by Cisco shows: hostname R1 ! interface ethernet0 ip access-group 1 in ! access-list 1 deny host 192.168.10.1 access-list 1 permit any Port ACLs (PACLs) offer the ...

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2 answers
1 votes
566 views
Virtual port channel topology with firewall
1 votes

Yes, a stacked switch topology is not proper for a data center, however it's fine for an IDF. Why? It's not 99.999, more like 95-99% uptime due to ISSU ain't gonna really work. The port channels ...

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3 answers
2 votes
1k views
FloodLight OpenFlow controller - ACLs, Firewall, static rules - what is the difference between them?
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The difference between an ACL and a firewall is keyword stateful. A firewall keeps a state table whereas a basic ACL simply filters based on layer 3/4 properties. In a router, firewall functionality ...

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1 answers
3 votes
567 views
Call is disconnected after huntstopped to another phone
1 votes

huntstop channel is missing from x2002.

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