Networking Protocols

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Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

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Hey Experts,
So i am struggling with this and it it is most likely due to my lack of knowledge of the subject.
I have wrote in the past a mini script that pulled values from snmp on printers with page counts, OID value that i needed was easy to find just by searching for the current count.  Not that easy on the WG since bandwidth is constantly going up and down.
I am trying to modify my script to pull bandwidth values from a watchguard.  Upload and Download bandwidth speeds on a WAN interface. I've done a smnpwalk and have a list a mile long of values and data but unsure which ones pertain to interface speeds....

I've been unable to locate online a list of the specific values online.  Does such a list exist?  Does anyone know how to pick apart the list from snmpwalk to get what i am looking for?

I have attached the snmpwalk if anyone cares to take a look.

Thanks
LIST.TXT
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We have a Cisco Catalyst switch with the attached config.  We have two VLANs 2 (Voice), 3 (Data).  The phone system is on FE 2/2 which is handing out DHCP for VLAN 2. Is there any reason with this config that if we plug a phone in to almost any other switch port that it would not get DHCP from the phone system on FE 2/2?  Does the Voice command only work for Cisco Phones?  We are trying to use Mitel phones on this setup.  

Current configuration : 9450 bytes
!
! Last configuration change at 13:54:40 EST Mon Oct 7 2013
! NVRAM config last updated at 13:56:53 EST Mon Oct 7 2013
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service compress-config
!
hostname XXXX
!
boot-start-marker
boot system flash bootflash:cat4500-entservices-mz.122-54.SG.bin
boot-end-marker
!
enable password !!!!!!!
!
!
!
no aaa new-model
clock timezone EST -4
ip subnet-zero
no ip domain-lookup
ip name-server 208.67.222.222
ip vrf mgmtVrf
!
!
!
vtp domain Agency
vtp mode transparent
!
!
network-policy profile 1
 voice vlan 2
 voice-signaling vlan 2
!
power redundancy-mode redundant
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
vlan 2
 name Voice
!
vlan 3
 name Network
lldp run
!
!
!
interface FastEthernet1
 ip vrf forwarding mgmtVrf
 no ip address
 speed auto
 duplex auto
!
interface GigabitEthernet1/1
!
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Hi,

I wanted to know if there is a possibility that the alerts for an application which is monitored by netcool could be suppressed during activities like change, upgrades etc?

How can we supress them/How to schedule downtime for perticular server in netcool?

I basically need a dynamic (not scheduled maintenance) way for my NOC Operators to go to a website or GUI, input a list of nodes that need to be suppressed for x amount of
time.  Once they put that list in, it should suppress all events from
those nodes until they either "flip a switch" or the time expires.

Can you please advise?

Thanks in advance

Rtantra
0
I would like a bit of guidance for my current senario, to find the most efficient setup for managebility.

Site A (HQ - alternate route to data center))
Site B (Datacenter where phone infrastructure is located)
Sites 1-66 (remote offices)

Currently there are sites 1 through 66 have two site to site vpns set up. One to Site A and one to Site B. Site A also has a site to site vpn set up to Site B

We will be rolling out shoretel phones to the remote sites 1-66

All remote site phones need to talk to eachother as well and id rather not have to mesh all sites to all sites at each remote site.

Id like to be able to use qos and BWM to prioritize phone traffic.

Anyone with sonicwall and shoretel phone experience have another way for me to configure this senario without having to add 66 address objects to a group at each location? Would route based vpns solve this? and if so how would they be configured at the remote sites? am I going to have 66 new tunnel interfaces on the data center firewall?

Thank you in advance
0
Hello,
I have Cacti setup to monitor devices in our company.  I want to know how to set up Cacti to receive snmp trap from those devices.  I read there is a plugin CAMM that works with Cacti, but I can't find much information to make that to work.  I appreciate any information.
Thanks
0
At our corporate office we currently have a 60Mb connection to the internet through Time Warner.  For redundancy we are adding an additional 50MB connection through AT&T.

We have another location that is co-located in our parent companies datacenter. They already have multiple providers and currently use BGP.

Questions.
If I get a /24 block of IPs from ARIN is it possible for me to split that block up and BGP advertise a portion through Time Warner here at my corporate office and get a provider at my parent company to advertise the other portion.

What I want to get to is the ability to failover from my corporate office to the parent company and if need be from the parent company to the corporate office.
Ideally I would take the /24 I hope to get from ARIN and split it in half. Advertise half here at corp and the other half at the parent company datacenter.


Very new to BGP. Any advise would be greatly appreciated.
0
folks,
could you please advise, minimum server specs to install SW-CUP8.6-K9 for lab purpose .

Regards,

Aaron
0
Hi,

Need to use AD to define which users can gain access via the remote Access VPN client. Users are using the IPsec VPN client to gain access to the network and the ASA has a radius server configured pointing to the DC, which also has the NPS role Installed. I would like to use a specific group in AD to filter who has access.
Can someone guide me on how this can be achieved as I have tried creating separate connections request policy and network policy with one specific AD group defined, but it doesnt work.

There is already one (looks like default) connection request policy called Use Windows Authentication for all users.

I have read that I can set up the same server as LDAP server on the ASA and use the ASA to query AD somehow but wanted to ask if someone can help without doing this as will be so much easier.
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I have setup 2 zone in my firewall LAN and WAN.

the WAN connected with 1 cisco router just to provide IPSEC VPN to some other vendor via my LAN interface.

now I need to have SSL VPN enable on my WAN and the SSL VPN request will from my LAN.

is it possible?
0
Hi,
I set my Vlans Spanning tree priority manually on my Core switch for Vlan 9, and my  Distro switch is using a 100M port that uplinks some access layer switches as the root port and its 1G uplink to the Core as a Desg forwarding port.  The Cost is higher on the 100M port.  Everything seems to work just fine but I'm a little puzzled and wondering if I'm missing something?  Why is the switch at the distro layer saying the 100M port to the access layer is the root?  Or is that the root for the Access layer switches and I am looking at it backwards?  

The ports in question on the Distro switch:
rotary@s07> show spanning-tree interface ge-0/0/47

Spanning tree interface parameters for instance 0

Interface    Port ID    Designated      Designated         Port    State  Role
                         port ID        bridge ID          Cost
ge-0/0/47.0    128:560       128:16  32768.00001da86531    200000  FWD    ROOT  100Mbps port speed link from Access Layer Switches

---------------------------------------------------------------------------------------------------------------------------------

rotary@s07> show spanning-tree interface ge-0/1/0    

Spanning tree interface parameters for instance 0

Interface    Port ID    Designated      Designated         Port    State  Role
                         port ID        bridge ID          Cost
ge-0/1/0.0     128:609      128:609  32768.5c5eab668801     20000  FWD    DESG  1Gbps port speed uplink to Core …
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Hey

I have a sonicwall router at my office.And want to able vpn access to view files on the server.

The sonicwall  has a static public static ip configured.

I have the client installed on my pc, however I can connect.
I am sure I don't have it configured correctly on the router.

Can someone please assist?


Thanks

Aidan
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OK, so this isn't really for me, it's for my boss.  I believe he may be deranged, he wants to see the cameras on the DVR from his Iphone.

I started with ports on the DVR, it wants to use port 3000.
They use a Linksys Firewall, so I put in a rule that said something along the lines of "if you hit the WAN interface of this firewall with port 3000, forward it to 192.168.2.100" which is the IP of the DVR.

I have the username and password correct, but I get a timeout error trying to login (using Pegaso Lite).

My DVR has entries for DynDNS and such, but I can't see how that would work since the DVR is behind the NAT firewall.

Hope to hear some suggestions!
0
Hi

We are changing to a private MPLS solution where several remote sites will be connected back into an HQ site.  These remote sites will need the ability to web browse via the Main sites secured internet connection.

The proposed solution is to drop in an MPLS utilising Juniper SRX110 (3rd party supplied), these will all terminate to another single SRX110 at the main site.

I have been told that i will need some for of NAT translator in order to allow the remote clients to browse the internet, is this correct?  if so where would it be placed?  Also any recommendations on this, perhaps an ASA5510?

I have attached a very basic layout of what i believe it should look like, please feel free to comment.

Once again your assistance with this is appreciated.

Thanks
Drawing1.jpg
0
I am setting up a small office for our business. There will be 8 computers working with front end databases hooked up to one back-end table.

How many housing switchboards should I use?

Is it better to use just one housing switch board? This would entail all eight computers hooked as well as the backend computer hooked up through one switch board. This would create a ton of wires throughout the room.

If possible, can I have only run one wire across the room and hook two switch boads up to it? This would mean the data would have to go through two switchboard (with one wire inbetween them). Will this slow down the speed?

The computers will also be hooked up to internet through these Ethernet cords.

I apologize if I am off with my vocab describing it... hopefully this makes sense.

Any other issues I should be on the look out for?
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I have network behind core switch is 192.168.10.0/25
and my routing to corporate network is BGP routing. I published my network at BGP as 192.168.10.0/24 because we have other subnet that also using 192.168.10.241/28 that doing routing internally.

at Corp router, they only allowed our subnet advertise as /24.
all my server which is using /25 subnet is not able to reach the next hop at Corp. which according to them they can't find my subnet advertised at their route table.
if to ask them change to accept my subnet which is /25 required a lot of process and paper work and question that to answer to justify it. the flow may take longer.

i understand that auto summarization may help... but i seem can't find the command in my switch.

By the way, I'm using Dell Force10 S4810. all this works perfectly until the host subnet been requested to change to /25

tks
0
In my company, desktop computers get their IP address every 8 days via DHCP.  We are trying to push a client software that requires an IP address from the desktop computers in order for it to work.  When their computers gets a new IP address, and the end-users go to use the client application, it is going to give an error message stating 'selected network interface is invalid, please select network interface (IP) to connect to application'.  This is will be troublesome because the users (800-users) will have to be shown how to chose the IP in the client software's interface.

Are their any methods to manage this scenario and that can be scripted or third=party application, etc.

Thanks
0
I will try my best to explain this.

Main Core Switch: HP 4208vl (11.40 Firmware)
IP Routing: Enabled
IP Default GW: 192.168.8.1
IP: 192.168.8.2 - VLAN8 (Primary Management)
Blade - G1 - X2 10GbE Fiber Module (Untagged on VLAN8)
Blade - H1 - X2 10GbE Fiber Module (Untagged on VLAN8)

New VMware Setup

(2) HP 2920-24 Port with Stacking Enabled  - Ring Configuration (Cabling)
IP Routing: Enabled
IP Default GW: 192.168.80.1
IP: 192.168.80.2 - VLAN1 (Primary Management)
Switch #1: Port A1 - 10GbE Fiber Module SFP+
Switch #2: Port A1 - 10GbE Fiber Module SFP+

When I am on DC (192,168.8.13) connected to the HP 4208VL switch; I try to ping 192.168.80.1 and receive "TTL expired in Transit"

The local router (Cisco 2921 running IOS 15.1) at this building and its IP is 192.168.8.1 and has IP Routing RIP Ver2 enabled  and Network 192.168.80.0 listed.

I believe this is either a routing issue or a stacking config issue. I tried researching about stacking but only found that i just need to type enable stacking on both of the 2920 switches. I know that part is fine because when I connect to the console ports i get the same config. I checked the config and it is turned on.

I just want these stacked switches to talk to the core (4208vl) switch. Any info to get this resolved would be greatly appreciated. I do have support on everything and will see if HP will help tomorrow morning. I just want to get this fixed so I don't waste my consultant's time on this issue.

0
The Guest wireless network is not working properly. The SSID is broadcasting, you can connect to it, you pull an IP address from the DHCP server on the SonicWall but you can't ping the SonicWall (even though I enabled ping). You can't ping anything else either. I would think if it could pull a DHCP address then it is able to talk to the DHCP server correct?  The DHCP server shows addresses that it has handed out.
0
Asa 5540 version 7.0(7) in front of exchange 2003 enterprise with the latest service pack, and GFI antispam box, queue builds up almost on daily basis, and we have to reload the firewall in order the get the email flowing, it works for a day then it happens again.
 no changes have happened since this started , we have relay taken care of already long time ago and we are good in that aspect. Also, "no fixup protocol smtp 25" was applied via command line on the firewall.

when I try to connect to our mx records' ip address from outside, i got "Could not open connection to the host, on port 25", if I do smtp test on mxtoolbox i get "
Connecting to 173.161.x.y

I'm the only administrator in the company, I have not made any changes for the past 6 months not even patching the exchange server. and everything was working fine until 4-5 days ago.

we confirmed in a previous question that it is a firewall issue not exchange, Please see question ID28389705.
0
We will performing network maintenance tonight and will need to take an OSPF neighbor down.  I've read on some Google searches on performing a graceful shutdown and wanted to see someone's take on it.

I need to shutdown the OSPF on our 6509 and then re-enable it with a port channel configuration.  Can i use the "max-metric router-lsa" command against router ospf 100 to force this device to start shifting traffic to different routers/OSPF neighbors?

The 6509 is connected to 2 ASR's (Level 3 & Sprint) and another 7609 (which is also connected to L3 & Sprint). I need to shutdown interface gi 4/45 (facing the ASR L3) in order to upgrade to a 2gb port-channel and restore OSPF.  Is there a better method of performing a graceful shutdown?

Basic Topology attached

Red links indicate new PORT-CHANNEL


Thanks in advance!
Rob
Topology.png
0
I checked out several links regarding the difference between a SAN and a NAS and I'm not understanding HOW block I/O is different than file I/O?
I also don't understand why block I/O is better than file I/O?
0
I'm wondering where you add a community string so that I can monitor it using Solarwinds.
0
We have a cisco 6509 with a 1gb link to an ASR1004 utilizing OSPF.  This link is heavily congested and we would like to link agg or port channel another 1gb link.  Are there any caveats with OSPF on LACP? Will BFD need to be disabled?


I've attached the two interface configs from both 6509 and ASR.

6509

!
interface GigabitEthernet4/45
 description ASR1004A
 ip address 10.254.254.14 255.255.255.252
 ip nat outside
 ip ospf bfd
 bfd interval 150 min_rx 150 multiplier 3
end

 

ASR

!
interface GigabitEthernet1/0/2
 description gw6509-1
 ip address 10.254.254.13 255.255.255.252
 ip ospf bfd
 load-interval 30
 negotiation auto
 bfd interval 150 min_rx 150 multiplier 3
end

Thanks in advance

Rob
0
I'm testing moving our Voip traffic onto its own voice vlan. We have Univerge 8100 with about 25 DT700's. Each phone has an Eithernet adapter so we just have 1 cable for each phone and pc.

We have a PoE Adtran Netvanta 1500 switch. I have everything working, switch is routing between vlans, trunks are working, pinging between both vlans working, and calls our going out of the gateway and back in.

The issue is the calls coming in and going out connect but I don't get voice. Everything local is working fine. So I figure it's probably something to do with a firewall rule or something. I have a static route on the sonicwall back to the switch vlan gateway for the traffic coming back in the network. We have a Sonicwall NSA.

Note: We didn't have any issues before when everything was on the same vlan.
0
I would like to know if the Cisco SSL Smart Tunnel can co-exists along with the Cisco Any Connect VPN solution.

Is it possible to have this both worked together. I connect to my office network using Cisco Any Connect VPN solution to access office application.
In parallel I want to connect to a Web Site which uses Cisco SMART Tunneling.
Let me know if this is possible....
0

Networking Protocols

12K

Solutions

16K

Contributors

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.