[pptp-server] GRE with cisco IOS IP Plus on version 11.1

[Justin Kreger]

Allow Protocol 47 thru your router

Justin Kreger, MCP MCSE CCNA
jkreger at earthling.2y.net jwkreger at uncg.edu jkreger at aristotle.wss.net


On Fri, 1 Jun 2001, Ismandy Ali wrote:

> I am trying to run my PPTPD  just like anybody else. I guess i am trying to
> run my GRE tunnel thru the cisco router. When I use traceroute	using GRE
> packets instead of using udp or icmp, it gave me  error "admin prohibited
> error" - !X. more info chk for the traceroute man.
> 
> 
> 
> Justin Kreger <lists at earthling.2y.net> wrote:
> >are you trying to make a gre tunnel to/from a cisco router, or are you
> >trying to have packets pass thru a cisco router?
> >
> >Justin Kreger, MCP MCSE CCNA
> >jkreger at earthling.2y.net jwkreger at uncg.edu jkreger at aristotle.wss.net
> >
> >
> >On Thu, 31 May 2001, Ismandy Ali wrote:
> >
> >> 
> >> Hi again guys,
> >>	  Is the type of router (IOS) used  is also effect the use of GRE?
> I have
> >> a short discussion with my friends that he told me there is such
> possibility
> >> that  the router doesn't accept the type of GRE that ie being used. I am
> using
> >> router  with version IOS IP Plus on version 11.1
> >> 
> >> Sounds weird to me, but this question sis to make sure. this is an
> excerpt
> >> from  ciscom page:
> >> ------------
> >> GRE is a tunneling protocol developed by Cisco that can encapsulate a
> wide
> >> variety of protocol packet types inside IP tunnels, creating a virtual
> >> point-to-point link to Cisco routers at remote points over an IP
> internetwork.
> >> By connecting multiprotocol subnetworks in a single-protocol backbone
> >> environment, IP tunneling using GRE allows network expansion across a
> >> single-protocol backbone environment. In order to run GRE, the
> particular
> >> Cisco router must run the IOS with IPSec and version 12.1 onwards.
> >> --------------
> >> 
> >> But I believe that this is true if I am running IPSEC, but still not
> sure.
> >> somebody , have any idea?
> >> 
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> >
> >
> 
> 
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