Protocols / Routing :: 3 Bits - How Many Subnets Usable
Jun 18, 2011I know how if u borrow lets say 3 bits u can make 8 subnets but how many usable subnets?
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How Many Bits Must Be Reallocated From Host ID To Network To Create 16 Subnets
Jun 30, 2012How many bits must be reallocated from host ID to network ID to create 16 subnets?( i did read the discussion on another page and still no clue). For the Class C network address 192.168.10.0 , which of the following subnet masks provides 32 subnets? How many host bits are necessary to assign addresses to 62 hosts ??
View 4 Replies View RelatedCisco Switching/Routing :: Switch Not Usable WS-C2970G-24TS-E
May 9, 2013I have problem with my cisco switch 2970.
Initializing flashfs...
flashfs[1]: 5 files, 1 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 15998976
flashfs[1]: Bytes used: 5935616
[Code]...
Cisco Switching/Routing :: 802.1 Span And Wireshark To See P-bits And Vlan Tags
Dec 30, 2009I do not see 802.1Q tags nor do I see p-bits (COS) in my wireshark captures. My setup is not working and I have no way to verify (sniff) that the 6509 is setting the p-bits to 3. [code]
View 4 Replies View RelatedLinksys Wireless Adapters :: AE2500 Only Gives 39Mbit Usable
Jul 6, 2011I recently upgraded my router to the Linksys E4200 and setup a 40MHz connection using Channels 44+48 of the 5Ghz spectrum. This works really well on my wife's Lenovo T420 w/Centrino 2x2 and Windows 7. I get over 100Mbit sustained performing CIFS file transfers from my file server. My SSID for 5Ghz is different from 2.4 so I can easily verify which one I'm connected to.
I wanted to do the same on my laptop which is a bit older (Lenovo T410) and only supported 2.4Ghz. So I bought the new Cisco AE2500 802.11n USB adapter and plugged it into a USB2.0 slot (I believe all slots are USB 2.0 on this laptop). I'm using the latest driver from the Cisco website.
Windows XP reports a connection speed of "300Mbit" just like on the my wife's laptop -- but when I do the same CIFS file transfer my transfer rate is "stuck" at 39mbit download (13% of 300) and for uploads I'm getting 16-17% of 300 (approx 48Mbit).
I've tried fiddling with all manner of advanced settings in the Windows driver for the NIC with no avail. No matter what, it's like I'm capped at exactly 39 Mbit.
I tried reviewing the specs of the AE2500 and it says it has two antenna's per band. I assumed this meant it was 2x2? Is this not the case. Is it 1x1? Could this explain it? Or, does it matter which 5Ghz channels I use -- from the AE2500 spec sheet it seemed like it might not support all 5Ghz frequencies?
While 39Mbit is better than the 17-20Mbit I was getting on 802.11g, given how well my wife's laptop works using the Intel NIC it seems something is lacking with the AE2500 or its driver.
Cisco Wireless :: 2106 Network Ports Not Usable
Oct 15, 2008basic question regarding the switchports on the rear of the 2106 controller. How do I configure them for use? I'm using port 1 as my uplink to a trunk port on an ASA and my network traffic to the management interface and guest vlans is all working as expected, but when I plug anything into any of the other ports, they get no addresses from my dhcp server (the ASA). I see nowhere to configure which vlan to tie the ports to or anything. I suppose I'm more used to a catalyst or ASA where I can just pick the ports and vlans (or trunks) I want to attach them to. [code] Again, all of the existing network functionality (private and guest network) is all functioning fine so I'm pretty confident I have the above configured correctly, I just cant make any progress on the WLC ports 2 - 8.
View 13 Replies View RelatedCisco Firewall :: ASA 8.4 / NAT Some Subnets To One IP And Other Subnets To Another IP?
Aug 15, 2012I need to NAT some subnets to one IP and other subnets to another IP. The range command want work because some of the subnets are out of order.For example subnets 192.168.1.0 - 192.168.7.0 and 192.168.25.0, 192.168.28.0 nat'd to 1.1.1.1. subnet 192.168.26.0-192.168.27.0 nat'd to 1.1.1.2
View 2 Replies View RelatedCisco Switching/Routing :: 887 - IP Multicast Routing Between Subnets Same Router
Feb 21, 2013I’ve been trying a few days now to implement multicast routing on my home network in order to make airplay work between subnets. Specifically between an iphone and a hifi separated by different vlans. Failed, as I have no experience in multicast routing. we have a clean configuration and simple network which consists of two SVIs
Vlan 10: 192.168.1.0 255.255.255.0
Vlan 20: 192.168.2.0 255.255.255.0
ios platform cisco 887
Linksys Wireless Router :: EA2700 - Usable Range (11.0 Mbps / Low)
Aug 3, 2012My new (30 days old) EA2700 has probably less than 40 feet of usable range without obstructions. Is this normal?
I've got the router sitting at the end of the hall, and I'm at the other end without anything between and I'm at 11.0 Mbps/'Low' on my laptop.
TP-Link 3G/3.75G Router :: MR3040 - Connection Usable For A While Then Internet Access Is Not Available
Nov 9, 2012Region : Malaysia
Model : TL-MR3040
Hardware Version : V1
Firmware Version : TL-MR3040_v1_120822
ISP : Maxis
Using the MR-3040 with the MA180 on Maxis network?The connection seems to come up, it will be usable for awhile and then after that Internet access is not available. Looking at the Status page on the MR-3040 it says 3G is connected. Doing a Diagnostic ping, nothing is reachable.
Linksys Wireless Router :: E2500 Unable To Establish Usable Internet Connection
Jan 22, 2012Purchased E2500 1 week ago. I do not have a problem communicating with the router itself (either hard wired or wireless) but I have been unable to establish a usable internet connection from the router.I live in building that is wired by Restech Services - Ethernet jack in wall - no modem. Connection works just fine if I bypass router and connect directly to PC (windows XP SP3 desktop or windows 7 laptop.),Very difficult to establish any internet connection at all. I have to renew IP address many times or go through re-boot sequence multiple times. Once I get a connection it is unusable. If I attempt to ping a URL (either from PC or from router admin page) it is unable to resolve host. If I ping an IP directly (either from PC or router administrator page) I typically get 60 to 80% packet loss. As noted, if I bypass router and make internet connection directly to PC - no problems - no packet loss.Used Cisco Connect software to set up. On advice of ISP changed MTU from 1500 to 1300. Also registered MAC id with ISP and changed from cloning PC MAC to using the router MAC. Downloaded and installed latest firmware version. Did factory reset and re-configured the whole thing. Double checked and swapped wiring.
View 5 Replies View RelatedCisco Firewall :: Routing To Internal Subnets From ASA 5510
May 17, 2012Having trouble with a couple items. First of all, should I be able to ping the inside interface of the ASA from all internal subnets assuming all of these subnets/vlans are directly connected to the same L3 switch? I can ping the ASA inside interface from our L3 switch, but I cannot ping the inside interface from a host on a different internal subnet. I have setup static routing on the ASA [
route inside 10.10.96.0 255.255.248.0 10.30.1.1 1]and verified that I can ping the host [10.10.96.212] from the ASA inside interface [10.30.1.5]. The inside interface is on the 10.30.1.x/24 subnet. My host is on the 10.10.96.x/21 subnet. From the ASA I can ping 10.10.96.212, but I cannot ping 10.30.1.5 from 10.10.96.212. I can however ping 10.30.1.1 from 10.10.96.212.
This leads to my next issue, which is trying to setup the ASA to work concurrently with our current firewall. I'm doing this in order to transition to the ASA. I'd much prefer to cutover inbound NAT a little at a time vs. doing it all at once. Our current firewall is setup at 10.30.1.2 and this is the default route on our L3 switch (0.0.0.0 0.0.0.0 10.30.1.2). So my question is, if I setup an inbound NAT to one of our web servers on the 10.10.96.x subnet, will I be able to get it to route back to the ASA as opposed to ending up in asymmetric routing **** since the default route points back to our other firewall?
Cisco Switching/Routing :: Isolating Two Different VLANs With Subnets On 6509E Sup 2T
Oct 1, 2012I have a pair of Core VSS 6509E SUP 2T. Two different LANs, two diff. Subnets. larger LAN has been connected to the VSS pair usng normal SVI and Post-Channles (has lots of closets 3750 stacks) and no problem. Second LAN, two closets, stacked and connected to each other via Port channel and trunk + SVI interfaces. Now, I have SVI interfaces for both LANs on teh VSS pair and that is causing traffic from one LAN to jump over to the other VLAN and rightly so because the VSS pair see both subnets as directly connected subnets. I was wondring if I delete the SVI for the second LAN and only keep the L2 VLAN this will be resolved> The reason for the second LAN to connect to the VSs pair is only that It has to go through the VSS pair to get to the WAN router (both LANs will go out through this Same WAN router) but WAN router is not my concern at this time. I need to isolate these two LANs/subnets traffic so no one VLAM traffic jumps over the other.I have also thought about VRF but at this point I am not sure if teh 3750 stacks supports VRF and if it does how to implement VRF on the second and samller LAN to just allow it go through the VSS pair in order to get to the WAn router.
View 13 Replies View RelatedCisco Switching/Routing :: How To Configure Route Between Two Subnets On 2960-S
Jun 21, 2012configuring a working route between two subnets (172.28.0.0/16 and 192.168.0.0/24) on a Cisco Catalyst 2960-S.
Problem: The subnet 172.28.0.0/16 is on VLAN 40 and the clients on this subnet have to access a preconfigured device with an ip in 192.168.0.0/24 subnet. The configuration of this device cannot be changed.
I have an Cisco 2960-S Lan Base (c2960s-universalk9-tar.150-1.SE3) switch [URL] that I would like to use to solve this problem.
Cisco Switching/Routing :: Two Subnets Through Pair Of SG200-08 Switches
Mar 21, 2012I have two separate companys both with staff at two locations and thier own networks connected with a wireless antenna which provides a high speed LAN connection between offices. I only have a single path through this antenna bridge. I have an SG200-08 switch at each end. What I am attempting to do is utlise the switches to take the two subnets at one office, combine them to one for transfer through the antenna bridge, and then resolve them into the two separate networks again at the other end.
View 1 Replies View RelatedCisco Switching/Routing :: ASA 5510 / Subnets Unable To Reach Outside?
Feb 18, 2012I'm replacing our current router with an ASA 5510 running 8.4(3) and I'm having what I think are NAT issues.From the 192.168.0.0/24 subnet, I'm able to reach the outside world (via NAT/PAT) without any issues. However none of the internal subnets (e.g. 192.168.10.0/24) are able to. Packet-tracer shows no ACL issues.
Here's my config:
ASA Version 8.4(3)
!
hostname gw
domain-name internal.mycompany.com
enable password asdf encrypted
[code].....
Question About Conversion From Bits To Bytes
Nov 16, 2012I used speed test and got 50 mega bits per second. I tried re downloading tf2 and i was getting 80 kilo bytes, and I am using windows 7. Doesn't 8 mega bits equal 1 mega byte?
View 2 Replies View RelatedCisco VPN :: WRVS4400N And VPN Connection Over AES-CBC (256 Bits)
Jan 19, 2012at our office we have a brand new WRVS4400N with 2.0.1.3 fw preinstalled.In order to make a VPN connection to our cliente, we need to establish an IPSEC VPN with AES-CBC encryption, but in the drop-down list I can only select 3DES.Does v2.0.2.1 fw update include AES-CBC encryption?In negative case, how can we add this type of encryption to the router?
View 1 Replies View RelatedCisco WAN :: 887 - DMT Bits Per Bin Not Working On ADSL2+
Feb 18, 2012I used to have a 877w in the same place and same setup as my current 887, this time though the DMT Bits Per Bin just will not populate on ADSL2+ altough it did work when it sync ADSL1 (same line/DSLAM, just came up ADSL for some reason).
View 6 Replies View RelatedCisco Switching/Routing :: 2901 - Multiple Subnets On Same Vlan Switchport?
Jun 29, 2012I have a Cisco 2901 with the 4port gigabit ethernet switch module that I'm trying to get configured to have a seperate subnet for each port. So far I have it set up so each subnet is a vlan, then on each port I use the switchport access vlan command to tell it which subnet I want that port to be on. However, there is one port that I need to have 2 subnets on. The way I found to do that was to use switchport trunking on that port, but it doesn't seem to be working properly. how they would configure this? Right now I have vlan 101 as x.x.x.17/28 and vlan 103 as x.x.x.53/30. I think where I'm getting hung up is the proper association between the physical port and the vlan subnets.
View 5 Replies View RelatedPassword Needs To Be 128 Or 256 Bits Depending On Network Configuration?
Feb 4, 2011I'm at my brother's house and I'm trying to connect to hs wireless network. I know the password but whenever I try to enter it it gives me a message that says, "The network password needs to be 128bits or 256 bits depending on your network configuration. This can be entered as 8 to 63 characters or 64 hexadecimal characters." From other forums I've looked at it says that I need to get to the router settings page. It gives me an IP adress to paste into the web browser but it doesn't come up as anything. What the heck?
View 4 Replies View RelatedCisco WAN :: Management And BITS Ports On ASR1002
Aug 30, 2011We recently purchased a Cisco ASR1002 router with four on-board Gigabit SFP-style Ethernet ports. However, when I do a "show ip interface brief", I see that there's an extra Gigabit Ethernet port. See the last interface in the following output:
ASR_1002_router#sh ip int b
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0/0 unassigned YES manual down down
[Code].....
On the router itself, in addition to the four Ethernet SFP ports, there are four additional RJ-45 ports. They're labeled "BITS", "MGMT", "CON", and "AUX". I know what the Con and Aux ports are, but what are the Bits and Mgmt ports? And is one of them the Gigabit Ethernet interface that I see listed at the bottom of the output? And if it is, is there anything special about it, or is it just another routed Ethernet port? Can I do something special with it, like out-of-line managment?
Cisco Switching/Routing :: 7206VXR - WCCP Redirection Of Non-directly Connected Subnets
Jul 18, 2012I have a Cisco 7206VXR running 12.4(24)T3 IOS. It is configured with WCCPv2 using L2 mask redirection. I am using service groups and associated extended ACLs to select which subnets I want to redirect port 80 traffic from.
It is working fine for the subnet 192.168.1.0/24....
int gi0/2
ip wccp 10 redirect in
ip address 192.168.1.99 255.255.255.0
... however, there is OSPF running between the router and a Mikrotik device directly connected to this interface. The gateway addresses for all the client subnets are on the Mikrotik. Traffic from other subnets, e.g. 192.168.2.0/24, 192.168.3.0/24 come in on this interface and I want to redirect those too. But it appears that the redirection doesn't work for those subnets (I don't see any hits on the relevant ACL for any subnet except 192.168.1.0/24).
It seems like the router only wants to redirect traffic for subnets that it has an IP address in itself. Admittedly, all of the example configs i've found on cisco.com are for redirecting traffic from directly connected subnets but I can't find anything that denies thie possibility of redirecting any traffic that comes in on a given interface.
The question is, is this how WCCPv2 redirection works? i.e., the router must have an IP address in the subnet to be redirected?
Why WAN Protocols Like Frame-relay / HDLC And PPP Are Called Layer2 Protocols
Aug 20, 2011why the WAN protocols like Frame-relay, HDLC and PPP are called Layer2 protocols?What is the address scheme they use?
View 5 Replies View RelatedError Message - Network Password Needs To Be 40 / 104 Bits Depending?
Apr 24, 2012So I have an issue with getting a laptop hooked onto the router signal. The router is a brand spankin new Linksys EA4500 and the laptop is an IBM which is running Win XP (not sure of SP version as it is a customer's comp. at a hotel I run). Anyway, the error message I am encountering is:The network password needs to be 40 bits r 104 bits depending on your network configuration. This can be entered as 5 or 13 ascii characters or 10 or 26 hexadecimal charactersAt first I thought is was my router password since it contained a $ symbol so I changed it to only letters and numbers but still didn't work. I have never encountered this error message on any laptops and no other rooms have been affected.
View 2 Replies View RelatedCisco VPN :: Error 442 Client 5.0.07.0440 In Windows XP 64 Bits SP2
May 22, 2011running cisco VPN client over Windows XP SP 2 64 bits.
I get the error 442 Failed to enable the virtual adapter. I have seen a number of solutions, but can not find solutions or workarounds for Windows XP 64 bits.
Cisco WAN :: Does 837 Router Support 2048 Bits Certificates
Oct 16, 2012Does the Cisco837 router supports 2048 bits certificates?
View 1 Replies View RelatedCisco VPN :: Generate Public RSA Key Of 4096 Bits On IOS Router
Aug 31, 2011Is it possible to generate a public RSA key of 4096-bits on an IOS router? We are running 12.4(24)T5. Have been going through some cisco doc and found this:
Cisco IOS 4096-Bit Public Key Support in IOS 12.4(11) and later.
However when I issue the command,crypto ca trustpoint exampleCAkeys, rsakeypair exampleCAkeys ?
it only shows me the maximum of 2048. Am I missing something? Currently our root cert has a public key of 2048 and the routers a key of 1024. The goal is to increase the root cert and our routers cert to 4096-bits. If that's possible.
Cisco Switching/Routing :: 3750 - Multiple Subnets In Single DHCP Pool On Device
Mar 25, 20123750 can not support multiple subnets in it's DHCP server pool config.
Is this an issue that can be fixed with a different iOS or is there a different Cisco switch that I can replace the 3750 with that will handle multiple subnets within an individual pool?
Cisco WAN :: 1941 - Why 5 Minute Input / Output Rate 0 Bits
Nov 23, 2010when i type "show interface" command on 1941 router, shows below print. Why 5 minute input-output rate are 0 bits? Can it be a bug?
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
304015 packets input, 151607798 bytes, 0 no buffer
[Code].....
Cisco Switching/Routing :: Connecting 3570 Switches To Nexus 2232 To Migrate Server Subnets
Nov 17, 2011I am in the process of migrating our existing server farm subnets to our new Nexus server farm and I discovered something I wasn’t expecting. My intention is to migrate our existing legacy server farm which is comprised of for paired 3750 switches off of our core 6509s and onto the Nexus and connect them to the 2232s via multi gig port-channel connections, two port channels per switch stack.
NOTE this is expected to be a temporary move as next year we intend to install additional N2Ks and move servers over to these directly. But to minimize the outage/downtime it will be better to move the subnets and switchs all at once.
These connections would be grouped 1 gig connections as port channels, one from each switch into one of the two 2232s.
Problem I discovered is Cisco does not intend to have switches connected to the Nexus and it immediately disables the ports when they see BPDUs.
I found a config that does work and it does fail over from one port-channel connection to the other but with the limitation that when the original port channel comes back online it does not fail back over to the original one, an acceptable situation for us. But I am wondering if Cisco would support this design if we did experience issues down the road.
The only issue I really see is to get it to work the config is different on the two N5Ks, see the pert config below for the connections. Both are running the same OS
augs1-ba-ar17# sh ver
Cisco Nexus Operating System (NX-OS) Software
TAC support: [URL]
[Code].....
Protocols / Routing :: Hosted VPN / IP Forwarding / Routing And Bridging?
Apr 5, 2011I have got a PC at work (Windows XP Pro SP3) that is on two networks with the IPs 10.20.30.167, subnet 255.255.255.0 (internet enabled) and 10.0.0.20, subnet 255.255.255.0 (no internet). On the 10.0.0.X network there is a gateway with the IP 10.0.0.200 allowing access to another network; 192.168.60.X, subnet 255.255.255.0 (no internet). I have added the route on my work PC to access the 192.168.60.X network via this gateway and I can access all PCs on all three networks from this PC.Now, I am using LogMeIn Hamachi so that I can access the networks at work from home. The PC at work is the 'gateway' PC on the Hamachi network. When installing Hamachi it created a new network connection and bridged this connection with my 10.20.30.167 network adapter to allow access to the 10.20.30.X network from an external PC when connected using the Hamachi VPN connection. I have manually configured my Hamachi connection on my PC at home to the IP 10.20.30.169, subnet 255.255.255.0, with the default gateway set to 10.20.30.167. I can ping all computers on the 10.20.30.X network from my PC at home.
I then added a route on my PC at home for 10.0.0.X to go via 10.20.30.167 (the 'gateway' on the Hamachi network). I also enabled IP forwarding on the 'gateway' PC (my PC at work). I can not ping any PC on the 10.0.0.X network from my PC at home apart from 10.0.0.20 (the other NIC in the Hamachi gateway PC) and 10.0.0.30 (another PC on the 10.20.30.X network that is also on the 10.0.0.X network).Now, with IP forwarding enabled on the Hamachi gateway PC I would assume after adding the route on my PC at home for 10.0.0.X traffic to go via 10.20.30.167 that I would be able to ping all PCs on the 10.0.0.X network...I also tried adding a route on my home PC to send all traffic for the 192.168.60.X network via 10.20.30.167 which has a route via 10.0.0.200 to the 192.168.60.X network, but this also did not work.I then tried adding the 10.0.0.20 network adapter into the network bridge that the Hamachi connection made, also keeping both IPs (10.20.30.167 and 10.0.0.20) on this network bridge by adding them into the 'IP Settings' in the 'Advanced TCI/IP Settings'. I also added the 10.0.0.200 gateway for good measure. I still cannot ping any PC on the 10.0.0.X or 192.168.60.X networks from my PC at home.
I have also added the route to the 10.20.30.X network on a PC on the 10.0.0.X network to go via 10.0.0.20 and tried pinging a PC on the 10.20.30.X network but this also has not worked. Also setting the default gateway on a PC on the 10.0.0.X network to 10.0.0.20 does not allow this...Surely bridging the networks 10.20.30.167 and 10.0.0.20 on my work PC would allow another PC on the 10.0.0.X network to access the 10.20.30.X network after adding the route or setting 10.0.0.20 as the default gateway?
Linksys Wireless Adapters :: WMP300N Fixed Drivers Windows 7 32 / 64 Bits
Aug 3, 2012who had a WMP300N with the Broadcom 4329 chip (PCIVEN_14E4&DEV_4329&SUBSYS_00601737&REV_01)Since i got my WMP300N all that i got is a really a big headache, since the drivers DOESN'T are meant for Win 7 (x86/x64), and the guys at Cisco/Linksys really are so kind to bring an unstable driver (v6.100) that they claim is for win 7.
i, as same as a ton of users, really get dissapointed because the driver in the cd does not work on win 7 and the 'official updated driver' is useless as well, and in the end lost a lot of time searching almost in the entire internet for a solution, that some pages claim to have, but the info is oudated, or the links are gone.so in a insurmountable-almost-titanic search, i somehow managed to gather all the required files that i'll put at disposition of those like me have a bad time with a supposed to be a pretty good wireless card.
1- bmc 4329 v4.100, this one is the most 'stable' and works pretty well in 32/64bits, it had a modded .inf wich enables a few features that various users will find pretty useful, when the installer prompts a warning about an unsigned driver, you had to allow the installation
2- bmc 4329 5.100, this one is working too on 32/64 bits, i'm posting it because some people got problems with the 4.100 version, however, the 5.100 is a stock unmodded driver, so maybe it will give connection issues.