After some wireshark, I see that when I have a vLan on the switch, only win7 gets IP, my macbook doesn't, sniffing to the bootp, I see that the DHCP sends NAK and after I only have DISCOVER & OFFER...
When I get the same switch and the same router and take out the vLan on the switch, everybody get an IP. What's the deal with this switch and vLans and Mac OS x ? Do I have to setup something else ?
I'm trying to upgrade a switch SRW224G4 but without success. Model Name SRW224G4 Hardware Version 00.03.00Boot Version 1.0.0.06
I send the file via the XModem( SRW2xxG4_FW_1.2.3.0 ).
I was given a linksys SRW224G4 switch .. It seems to work fine on some ports and others dont,I am tring to log into it to see what the current config is . I cant seem to find what ip address its pulling to be able to log into the web interface. I have tried the blue cable , and using hypertermail but with no luck .. I dont have com 1 or 2 as an option on my latop just com 3. how I can log into this switch and rest it back to factory specs so then I can go though and setup how i want.
View 4 Replies View RelatedI was wondering if there was a difference between the Linksys SRW224G4 & Cisco SF300-24 switches. Going through the support docs I see the SF300 has limited L3 functionality in terms of being able to establish static routes between VLANS. Any further information would be of use.
View 2 Replies View RelatedI have a switch SRW224G4 from Linksys and doesn't work now after an firmware upgrade!
Simple, here the result when I try to install the firmware "ls_106-12216.ros" or "SRW224G4P_SRW248G4P_image_v1020.bix" that came from your web site!
Here the result for "ls_106-12216.ros"
Calculating file's checksum...OK
Erasing FLASH ->>>>>>>>>>>>>>>>>>>>>>>>>>
[Code].....
I am the Systems Admin at LDM Media and am trying to get some support for one of the SRW224G4 managed switches we have in our rack. The issue is as follows:
Any endpoint connected to the switch is assigned an IP address in the range of 169.254.154.XXX regardless of the switches set IP range, the second issue is that I cannot access the web view management interface through the default IP address 192.168.1.254 (and I have tried to use the last IP in the range set by the router 169.254.154.254, to no avail)
How to regaining control of this supposedly smart switch?
We have small network with 15 Computers all connected to SRW224G4 . After a power brake our switch dosent "boot" anymore. I see all leds working flashing etc but no network acces, no Serial acces. When i try connecting to serial port and "reset" device the screen is blank.
View 1 Replies View RelatedI have recently installed a new Cisco SG 300-10 switch--running in layer 3 mode--to function as a basic router for a new subnet installed at one of my company sites. When we attempt to ping devices on the 15.120.204.0 subnet from the 230.20.1.0 subnet, each device gives 2 responses and then times out continuously after that. If we wait long enough (thus far, an undetermined period of time) and reattempt to ping the same devices, the same thing occurs. Otherwise, we get nothing but timeouts. This occurs regardless of where we connect in the 230.20.1.0 subnet including VLAN1 on the SG 300-10. However, if we connect into VLAN 2 on the switch and assign a static IP, those same devices respond continuously. I was thinking that this must be a security setting of some kind but I'm unable to locate anything in the SG 300-10 that would appear to cause this.
View 1 Replies View RelatedWe have a Cyberoam CR15wi hardware firewall at my company and it seems to be interfering with FTP to our website. I won't go into precise details but Filezilla, Dreamweaver 5.5, and GoLive CS's FTP utilities all will put a file up onto our web hosting company's server then indicate that the server didn't send a response so it assumes the file never got there. The file does in fact get uploaded intact though so it seems the server's response itself is the thing that's getting blocked. This problem occured with two different web hosts and FTP works perfectly with the same software and same FTP settings from my home connection so it's definitely us.
View 6 Replies View RelatedI keep getting an error when trying to use the Microsoft Link layer Topology discovery. It claims there the is either network delays or an incompatible router on the network.
Actual error:
"Responses from other devices on the network are delayed or there is an incompatible router on the network"
I have 2 RV042 routers, one for each of our network connections. So I am assuming this is the source of the error.
I'm trying to get a Curl Response from an outside server, however I noticed I cant neither PING the server in question nor connect to it.I tried disabling the iptables firewall but I had no success.My server is running behind a Cisco Linksys WRTN310N Router with the DD-wrt firmware Installed. In which I already disabled the firewall.
Here are my network settings:
Ifconfig
eth0 Link encap:Ethernet HWaddr 00:26:b9:76:73:6b
inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:b9ff:fe76:736b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]......
This gets an empty result array. This function however works well in the previous server where the script was hosted before. No modifications where made whatsoever
I would like to upgrade the firmware on my SRW224G4 switch but I don't know which file I should be using. When I go to download firmware I see links for the following
"Cisco SRW224G4 24-port 10/100 + 4-port Gigabit Switch - WebView"
Which has firmware 1.2.3.0
"Cisco SRW224G4 24-port 10/100 + 4-port Gigabit Switch - WebView V1.0"
Which has firmware 1.2.2a
I'm not sure which firmware I should use, and the last thing I want is to brick this switc.
Below are the current firmware details
Boot Version: 1.0.2 (Date: 17-Aug-2006, Time: 14:55:46)
Software Version: 1.2.1b (Date: 31-Aug-2006, Time: 13:47:21)
Hardware Version: 00.03.00
One of our costomers has a SRW224G4 Switch - which has not any documentation :-(
I do not get onto the switch in any way. I do not have an IP-Address, the default settings for he serial port do not work ... So I cannot reach the device and reset the password like described in: [URL]
Is there any other way to reset the device? I cannot find any reset button.
i need to know that how can i make vlans in Linksys SRW224G4 Layer 2 manageable switch , because i have 100 users network having lots of users using more then 1 ip to connect 4 different servers having different ip class pools, what i need is, i want to use only single ip pool with Class B Address like 172.16.6.0 for all network users which all connect to far end servers through layer 2 Linksys SRW224G4 manageable switch controlling to allow different IP pools ? like 172.16.1.0 / 172.16.55.0 / 172.16.99.0 and 192.168.1.0
View 1 Replies View Relatedit's probably a setting to do on ESW 520 but all my DHCP is slow when I use ESW 520.With an other switch, I haev no problem.
View 4 Replies View RelatedI have a 2620 Cisco Router plugged into a 2924 Cisco switch by a trunk.The vlan configuration works, I subdivide my router interface with dot1q and have virtual machines on different vlans and everything works perfectly.The problem comes with a DHCP request.Let's say that I have my local lan on the native VLAN 1. I create a VLAN 25 in the switch and create a fa0/0.25 in the router.In the switch, I plug the cable modem from my ISP in a port on vlan 25In the router, I go to fa0/0.25 and issue "ip address dhcp".The DHCP request goes out, but never comes back. The problem seems to be in the switch because if I try the same thing with a virtual machine I have on a trunked VMWare ESXi server, I get the exact same results. I just don't get the IP address from the ISP.The next step would be to monitor the port on which the cable modem is connected and sniff the packets to see if the DHCP request actually gets back through.
View 2 Replies View Relatedknow any plan from Cisco to make 300 series switch to work as a DHCP server?
View 1 Replies View RelatedI have an SG300-10 and an SG200-26. I also have an OpenWRT flashed router that can tag VLANs.My problem right now is that my default VLAN is 1, my router is doing DHCP in VLAN 1, and I want all my network equipment to be on VLAN 1, but my SG200, when LAGed to the SG300, will not get an IP.My SG300 is pulling an IP just fine from my router DHCP pool. When I connect the SG200 directly using either 1UP port settings or 1TP port settings, I get an IP just fine. When I LAG my connection (ports 1-3 on both) I get no DHCP information sent through the LAG to either the SG200, nor to any client devices that are set for DHCP.
View 7 Replies View RelatedI have an issue with SRW2024P-K9-BR (SG300). Datasheet and configuration guide show me that is possible configure DHCP snooping in this switches, but web interface and console don't appear related menus/commands.
I'm using firmware version 1.1.2.0 and didn't found anything about this here.
I am having issues getting clients to DHCP off of a teamed adapter through the Cisco Switch. If I run a one to one cable from the server to the switch it works fine, but when I switch over to the Intel QuadNic in Team Mode then the PXE clients do not get a DHCP address from that server anymore.
I have configured the Team mode on the Windows Server 2008 R2 and given the and configured the LAG with the 4 plugs on the Cisco SG200-26 switch in the LAG Management. It says the link is up and if I give the client a static IP I can ping the server and the server can ping the switch.
I have defined several V LAN's and the corresponding IP Addresses on the SGE2000. The static routing works fine. On one V LAN there is a Windows 2003 DHCP Server which I have defined as DHCP Relay Server (Option 82), but no packets are relayed. Has anyone a functional setup, with dhcp relay?
View 8 Replies View RelatedWe have a single SGE2010 in layer 3 mode switch with a Server 2008 DHCP server.
We will be implimenting a Voip netowork where the PC's connect to the voip phone. I would like to create another vlan - 10. I have created the vlan and assigned the IP on the swtich.
Routing seems to be working. I can ping both IP addresses of the switch on either vlan.
I cannot get DHCP working. In the SGE switch I have enabled DHCP Relay, enabled option 82, set my DHCP Interface as VLan1, and specified the DHCP servers IP address. On the ports I have set the port where the DHCP server connects to as a trunk port with Vlan 1 untagged and vlan 10 tagged. I have set the ports where the phones connect as a trunk port with vlan1 untagged and vlan 10 tagged.
I am looking for a how to configure a DHCP server for a Cisco SMB 300 series switch to obtain an automatic configuration. Currently i am using a Cisco 1800 router as my DHCP server and the DHCP pool serving the 300 series switch is configured as follows.
ip dhcp pool Cisco_SMB_300
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1
[Code]......
Looking at pcaps, I don't even see a tftp request going the server after the switch obtains an IP via DHCP. The config file format is exactly as obtained from the download backup section (pretty sure its not the issue since i don't see a download attempt). Also, the SMB switch is running the latest firmware image (1.1.1.8)
Looking though the admin guide i did not see specifics on how the DHCP server was to be configure for the auto configuration feature to work.
we are looking to use the new firmware's DHCP server feature to setup different DHCP scopes for 5 different VLANs configured on the switch. I see where to turn this on and setup the scope however I can't clearly see where I can assign the specified scope to each VLAN on the switch.
View 6 Replies View RelatedI have Multiwan router with 1 port WAN and 4 DHCP Cable modem connected to SF 300-8. I want to connect 4 modem via VLAN through switch. I define Vlan2,3,4,5 on router also in Switch. port 1 on the router as trunk and the other port 2,3,4,5 as Vlan2,3,4,5 with VLAN mode Access. I tag port 1 on every VLAN also Untagged for each port. I having problem when I check the status from multiwan router. all IP address is the same (duplicate). what I want is each VLAN has own DHCP Address. Is that any miss configuration ?
View 6 Replies View RelatedI am seeing a problem with our Cisco 300 switches. We use these switches as access switches, with a stacked 3750-G at the core, two 2960-S at the distribution layer, and about 10 300 Series switches at the access layer (10 port and 28 ports, all PoE).
We use Voice VLAN (VLAN 14) for our Mitel phones – there is a DHCP server on the Mitel system. Phones come up, get tagged VLAN 14 (LLDP), Traffic flows (including Broadcast for DHCP etc…). The system works, and has worked for months.
One day, suddenly, I find that all the Mitel phones on a particular access switch are not working. I look on the Mitel system and the lease on DHCP has expired, and the phone is stuck on renewing its DHCP IP address. I run port mirroring on the switch for VLAN 14 to see what is happening. The phones are stuck on DHCP discover, and I see the DHCP Discover broadcast packets on the switch but nothing else, no DHCP offer packets – hence the phone stuck at boot cycle.
I then do a port mirror from another access switch (that is currently working) – I can see the broadcast packets from the Mitel phones on the broken switch, but on this switch I can also see the DHCP offer packets from the Mitel system. I run two port mirrors simultaneous from the two switches (one working, one not) and I can see that the DHCP offer packets are not coming through to the broken switch. Panic ensues – I look at the distribution layer and there is no problem what so ever.
For some strange reason, the Cisco 300 28 port has stopped passing DHCP broadcast packets on a particular VLAN, even though they are being sent. I power cycle the switch – and hey presto, DHCP offer packets are coming through, and the phones get an IP address and boot properly.
Forward a couple of weeks later, and to today. I have another phone that is showing the same symptoms, luckily it is the only phone on this particular Cisco 300 28 port. The same issue is occurring as described above. I gather as much diagnostic information I can then reboot the switch – but still no joy. I then remember that this switch is not directly attached to the distribution layer and instead gets trunked to another Cisco 300 28 port. I give that a reboot and 5 minutes later, DHCP broadcast offers are passing and the phone boots.
I am listing this problem as not just a ‘one off’ now, and is recurring. It has happened to two of my 300 28 port switches.
All Switches running 1.1.2.0. No link to up time – first instance of the problem, switch was up for 14 days – second instance (another switch) uptime of 39 days LLDP is working fine on the switches, as is Voice-VLAN (Port is tagged and broadcasts out DHCP Discover which is seen by other devices throughout network) Nothing in the log file on the access switch Nothing on the Dist/Core regarding STP – Spanning tree set up is fine throughout.
we are looking to use the new firmware's DHCP server feature to setup different DHCP scopes for 5 different VLANs configued on the switch. I see where to turn this on and setup the scope however I can't clearly see where I can assign the specified scope to each VLAN on the switch.
View 1 Replies View RelatedDHCP Relay on a SGE2000 switch.I have configured two VLANs on the switch, VLAN2 (192.168.10.x/24) and VLAN3 (192.168.9.x/24). I have the switch in Layer 3 mode. I have configured the DHCP relay server of 192.168.10.4 and the DHCP Interfaces as VLAN3. All of the IP Static Routes were generated by the switch.
If I put a client computer on a port that is Untagged VLAN 3 and try to get a DHCP address from the server on an Untagged VLAN 2 port I never get a response back.I have done some packet captures and here is what I have found:
I see the DHCP broadcast on the client computerI see the DHCP Request on the DHCP server coming from the IP assiged to the switch on VLAN 3 (192.168.9.254)I see the DHCP server respond with a DHCP OfferThe DHCP offer never gets to the client computer I can't seem to get a DHCP address to any system not on the same VLAN as the DHCP server. Option 82 is disable and I did try enabling it, which made no difference.
Does SRW248G4P supports dhcp relay?I don't see any option for it with firmware version 1.0.2.
View 1 Replies View RelatedI'm new on this site and having SLM2008 switches. I've been trying to solve the problem for quite a while, but so far I was unable to solve it. So here it is:
I'm trying to send IP TV from ADSL box (aka Free box) located in a small annexe of the house where the telephone line enters. Whole house is wired with 1Gb CAT6 cable. I'm using this wiring to get internet connectivity in different parts of the house and this works great. Now the idea was to create a separate VLAN on my 3 SLM2008 switches to get IP TV stream from ADSL box to the media box (also provided by ISP, aka Freebox HD). Different V LAN configs did not work for me: Free box HD would stuck on boot claiming it doesn't "see" the network. So then I've decided to go from simple things to more complex and removed the V LAN (came back to default config) and connected ADSL box with Free box HD with just one SLM2008 in between. Surprisingly it did not work! Same error on Free box HD! So I plugged the hub and started my Wire Shark to see what is going on.
First tried without the switch (just with a hub in the middle) and I saw successful connection:
1) Freebox HD send DHCP Discover
2) ADSL box responds with DHCP Offer
3) HD sends DHCP Request
4) ADSL issues a DHCP lease
Free box HD is ready to show any channel from ISP.
Secondly I plugged SLM2008 back and looked at traffic right after ADSL box: No DHCP packets seen at all! Then I moved hub next to Free Box HD and I saw it keep sending DHCP Discover every 30 seconds or so.... And it was not getting reply back.
So my conclusion is that SLM2008 for yet unknown reason would not let DHCP discover pass.... I've tried un managed Net Gear switch and *boom* Free box HD booted without a problem. I looked through SLM2008 settings and I have not found something relevant.
How to make my switch pass DHCP discover? If yes my next question would be how to configure V LAN on 3 switches to make it deliver IP TV to my TV set.
I am relatively new the configuring network switches. Could someone point me in right direction to configure SG300-28 as a DHCP server?
From the people I talked based on device specs it should be able to act as dhcp server. However, if we cannot, can it be configured so that clients get DHCP information from Firewall to which L3 switch is connected.
I have sample lab dhcp-client ------- (vlan62) sg-300 switch (vlan62) ------ dhcp server
When I set on switch :
dhcp relay : enable
option 82 : enable
dhcp server address: ip of dhcp
When debug packets from client to server, there is no 82 option in dhcp discover packets. I mirror all traffic to mirror port with wireshark. I can see dhcp packets but without option 82.
Firmware version: 1.0.0.27
I have some issue from last 2 month on sf300.
The problem is that sf300 does not support complete dhcp, for that i put different internet modem.
I connected one internet modem in vlan 1 so users from that vlan can access internet and default gateway is nothing but Internet modem ip. user in the vlan are not communicate with other vlan because, other vlan users default gateway is Interface ip address. How i can give access to vlan 1 to access other vlan .
See the attached.
I have to used static route in all 3 devices or any one.