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In the book it tells me that a loopback is a virtual interface card basically. So when I enable it "ip address and no shut"   why is it I cant telnet to it?    nor can i ping it from the other router connect with a patch on same port 0/0 on each     ...

Hello Expert, Just trying to understand the underlying working principle of mss , mtu, fragmention etc. Appreciate if you could enlighten me  on below query.   R1----R2---R3R1 and R3 running Gre tunnel   1) I found the minumum mtu on internet is 576 ...

We have two redundant/diverse internet connections to our campus network. We do NAT/PAT/one-to-many NAT at our borders and we are installing new ASR 1001-X routers. Can anyone tell me if the ASR 1001-X routers have a way of sharing NAT tables or sync...

Today I noticed empty mac address table on our Cat6500 in VSS.           c6506_hto2_vss#sh mac address-table Legend: * - primary entry        age - seconds since last seen        n/a - not available  vlan   mac address     type    learn     age      ...

p.hruby by Level 1
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  • 6 replies
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Hi! I have an old Cisco WS-C3560-24T with SW=12.2(55)SE "C3650-IPBASE9-M".   It seems like this swich doesn't support newer encryption over SSH. It only allow SHA1. I was thinking maybe the SW is outdated?   Will it help to upgrade image? And what ve...

ronsim by Level 1
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  • 3 replies
  • 0 Helpful votes

Hello all   I just purchased a couple of 2950 switches for my CCENT lab and immediately encountered a problem! I cant seem to use a serial port connection(DB9 to USB converter) the cable is doubtlessly ok, however when I open a session in putty I get...

Feanor by Level 1
  • 1219 Views
  • 4 replies
  • 0 Helpful votes

Hello,   I recently setup a pfsense as gateway and firewall box for my fancy new Gigabit internet service and am using C3560E as a L2 switch between pfsense and several devices. I did reset the switch before deploying. I noticed that I am able to get...

gratelord by Level 1
  • 631 Views
  • 3 replies
  • 0 Helpful votes
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