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Hi everybody.I am reading about Ipsec which contains two major protocols among others:  AH and ESP.For now, I am focused on AH only. I read the theory on AH and two modes AH can operate :  Transport mode and tunnel mode.(201.201.201.1)h1--------R1(19...

sarahr202 by Level 5
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Hello. I'm trying to implement the UDLD protocol (Cisco-compatible), but face  some problems. There is no enough information for implementing this  protocol neither in RFC 5171 (http://tools.ietf.org/html/rfc5171) nor on  cisco.com (articles http://w...

zir868686 by Level 1
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Please explain the output of show spanning-tree summary:SW1-R3#show spanning-tree VLAN0001  Spanning tree enabled protocol ieee  Root ID    Priority    24577             Address     108c.cfb6.ab00             Cost        19             Port        15...

madmin.kz by Level 1
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  • 2 replies
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hi all,I'm having some issues creating multiple vlans on one swtich (2950).This is a lab setup that I'm going through in an attempt to learn a bit more about Cisco. I bought 3 1841 routers, and 3 2950 switches and I'm trying different setups.A partic...

allitnils by Level 1
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  • 5 replies
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Hi,I've just installed 2 of these in my workplace on a PLC network.I'm now looking to set one of the ports up as my diagnostic port and would like to be able to mirror any of the other ports to this port.I believe it is called SPAN on Cisco switches....

Hi AllI am new to this so sorry if I have overlooked something so simplistic it hurtsWe have just received a new 3750X-12S-S to put onto our existing network but I am having a few issues getting this switch working correctly.For this post, the permen...

Two switches running two instances of MST. Instance 1 supports vlans 1 and 12.  Instance 2 supports vlans  11 & 13. Both switches support vlan 2 as well and the trunk permits vlan 2 to cross but it is not configured as part of either MST instance. If...

jacob6000 by Level 1
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  • 1 replies
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Resolved! basic route query

Hi,We have a server with data ip address 10. 1.1.1 & Mgmt IP- 10.2.1.1 that server is connected to Switch & this Switch had default gateway 10.2.1.2(firewall mgmt ip).On server static route is configured to send traffic to firewall data interface.Pro...

raza555 by Level 3
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  • 7 replies
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Hi, If you merge VRF A with VRF B and VRF C BUT VRF B and C are not merged together can VRF B see the routes/information for VRF C?Or does VRF B and VRF C ONLY see the information for itself and VRF A?If you merge a new vrf into an existing one do th...

lkadlik by Level 1
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  • 2 replies
  • 0 Helpful votes