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Hello all,I want to set up a dhcp-relay.There are 2 routers one is the dhcp server the other one is the forwarder.Please see the attached file (from Cisco packet tracer).The pc on the right side only give my a message with a failure of retrieving a i...

boe boe by Level 1
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  • 8 replies
  • 0 Helpful votes

Good Afternoon,I am having a little difficulty getting the 819 HGW ISR to work on a GSM SIM from T-Mobile.  How do I "enable" the cellular interface and is that even what I need to do/start with?  Doing a few show commands, the router does see the SI...

Dear friends,I have this log on my core switch:976691: Jan  6 14:13:57.666 IND: %TCP-6-BADAUTH: No MD5 digest from 10.201.252.113(179) to 10.201.252.2(42451) (RST)this core switch (10.201.252.2) has an ospf adjacency with WAN router (10.201.252.113)....

Hi All,I wish to replace the SUP720 engine on my 6509-E. The environment where this device is hosted is susceptible to hardware failures during powercycles hence I wish if I could replace only the SUP with the current IOS and not have to reload the c...

Hi,lan1 is 192.168.0.0/24 with a dhcp server on 192.168.0.8 (GW 192.168.0.1)..no vlan setAll of the stuff i am describing below is working without vlan (if i attach a switch on the pfsesne lan side and make test with access point connected to it)..I ...

t80243280 by Level 1
  • 1783 Views
  • 2 replies
  • 0 Helpful votes

Hello Guys, I am pretty new in the cisco world, I want to start my with my first question in this forum.How can I deleted a previos IP set to a VLAN without delete the VLAN.Thanks guys

I am looking for some assistance regarding a crash of the 3750 stack.  It currently has 7 members (6xWS-3750-24P with a WS-3750G-24PS as Switch1/Stack Master) running 12.2(55)SE6 with Layer 2 functionality.It crashed with "Debug Exception (Could be N...

Resolved! Linking 2 switches

I have two SG200-50 switches.  They are located on separate floors and linked by one cat 5e cable.  If I pulled another cat 5e cable between the cabinets can I configure a LAG or something to achive a 2 MB link?

Rick Lowe by Level 1
  • 676 Views
  • 6 replies
  • 0 Helpful votes

hi all,i have a question regarding the output of the "show ip route" command:C         192.168.30.0/24 is directly connected, Ethernet0                                               172.16.0.0/24 is subnetted, 1 subnetsS          172.16.1.0 is direct...

flokki123 by Level 3
  • 172165 Views
  • 6 replies
  • 0 Helpful votes

Hello.There is an issue into our environment, that cause bad performance into ip voice calls.We have 5 switch (3750), managed by our own, while layer 3 (router and external communications) is managed by ISP.We have ip phones (thomson) connected to so...

                   Hello Expert,I have a switch 6509 -E with the below image. Currestly, the image doesnt support SSH. Could you please provide me whether I can update the image file with K9 in the existing box and also if you can provide me the imag...

Resolved! MAC flapping

Hi,I have a problem with MAC flapping on one of my switches. I didn't setup that environment and I founded that recently. I think person which was in company before made there mistake with configuration.Below here is a picture how it is connected. Ba...