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2
votes
2answers
70 views

HSRP + OSPF over tunnel interface

We have 3 sites over an MPLS. Each site has 2 x Cisco 2911's running HSRP. Each site has a tunnel interface from it's local site to the remote site over the MPLS. The tunnel interfaces are mirrored on ...
6
votes
3answers
161 views

how to block ssh tunneling traffic?

if someone were to set up an ssh tunnel to/from work or home, is there a way to prevent future SSH tunneling traffic? I understand that websense can block traffic, but users who use ssh tunneling can ...
7
votes
3answers
166 views

What is the use of a tunnel interface on a cisco router?

What is a tunnel interface used for on a cisco router? What is the difference between setting up a VPN connection and a tunnel interface; or does this serve the same purpose?
13
votes
4answers
423 views

Is GRE necessary for an IP-only tunnel?

I need to build a simple point-to-point tunnel to connect an office through an area of the network we trust but directly don't control. Does the tunnel need to be GRE-encapsulated or can I use direct ...