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TOPIC: Directly connected routes

Directly connected routes 9 years 2 months ago #23331

  • skepticals
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Gateway of last resort is not set

172.12.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.12.1.0/30 is directly connected, Serial1
C 172.12.1.2/32 is directly connected, Serial1
172.24.0.0/30 is subnetted, 1 subnets
C 172.24.1.0 is directly connected, Ethernet0
Current configuration : 100 bytes
!
interface Serial1
ip address 172.12.1.1 255.255.255.252
encapsulation ppp
clockrate 64000
end

Why does it show two listings for the Serial1 Interface? One for the interface and one for the network? Or? Why not for the Ethernet?
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Re: Directly connected routes 9 years 2 months ago #23338

  • Smurf
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I think it has something to do with the PPP protocol. Not too sure what but from old DIAL-UP days i seem to recall it does something similar.

Hopefully someone else can expand on that.
Wayne Murphy
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www.firewall.cx

Now working for a Security Company called Sec-1 Ltd in the UK, for any
Penetration Testing work visit www.sec-1.com or PM me for details.
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Re: Directly connected routes 9 years 2 months ago #23339

  • skepticals
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Smurf, You might be on to something. I removed PPP encapsulation and went back to HDLC:
Gateway of last resort is not set

172.12.0.0/30 is subnetted, 1 subnets
C 172.12.1.0 is directly connected, Serial1
172.24.0.0/30 is subnetted, 1 subnets
C 172.24.1.0 is directly connected, Ethernet0

Now, only the one route is listed. I wonder why PPP needs the additional route.
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