Kelly Cobean wrote:
> 
> I'm curious what would happen if you took the "no keepalive"
> statement off
> of the ethernet interface you are using.  By having this in
> place, you are
> effectively "spoofing" the up condition on the interface by
> telling it that
> "up" is ok, even if you aren't sending or receiving
> keepalives.  I would
> imagine that if you took this off, then your test will fail.

Note that he doesn't have "no keepalive" on the interface in question. It's
on the other router.

What you say about no keepalive is true. An Ethernet interface can be up/up
even with no cable attached if you configure no keepalive.

But our tests involved the Ethernet interface on the other router, which
didn't have this configured and was definitely "down/down" (or
administratively down in some tests.)

Just wanted go get one more message in with my name on it. Just kidding!! ;-)

Priscilla
> 
> 
> 
> Kelly Cobean, CCNP, CCSA, ACSA, MCSE, MCP+I
> Network Engineer
> AT&T Government Solutions, Inc.
> 
> Disclaimer:
> The opinions expressed herein are those of the author alone,
> and do not
> necessarily relfect those of AT&T Government Solutions, Inc.,
> it's
> management, or it's affiliates.
> 
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of
> richard dumoulin
> Sent: Monday, July 22, 2002 1:50 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Priscilla Oppenheimer [7:49347]
> 
> 
> No prob, see below.
> 
> 
> 
> RB#sh run
> Building configuration...
> 
> Current configuration:
> !
> version 11.2
> no service password-encryption
> no service udp-small-servers
> no service tcp-small-servers
> !
> hostname RB
> !
> enable password cisco
> !
> no ip domain-lookup
> !
> interface Ethernet0
>  ip address 192.168.1.1 255.255.255.0
> !
> interface Serial0
>  ip unnumbered Ethernet0
> !
> interface Serial1
>  no ip address
>  shutdown
> !
> interface Serial2
>  no ip address
>  shutdown
> !
> interface Serial3
>  no ip address
>  shutdown
> !
> interface Serial4
>  no ip address
>  shutdown
> !
> interface Serial5
>  no ip address
>  shutdown
> !
> interface Serial6
>  no ip address
>  shutdown
> !
> interface Serial7
>  no ip address
>  shutdown
> !
> interface Serial8
>  no ip address
>  shutdown
> !
> interface Serial9
>  no ip address
>  shutdown
> !
> interface BRI0
>  no ip address
>  shutdown
> !
> no ip classless
> ip route 0.0.0.0 0.0.0.0 Serial0
> !
> line con 0
> line aux 0
> line vty 0 4
>  password cisco
>  login
> !
> end
> 
> RB#172.16.1.1
> Trying 172.16.1.1 ... Open
> 
> 
> User Access Verification
> 
> Password:
> RA>en
> Password:
> RA#sh run
> Building configuration...
> 
> Current configuration : 801 bytes
> !
> version 12.2
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname RA
> !
> enable password cisco
> !
> memory-size iomem 10
> ip subnet-zero
> !
> !
> no ip domain-lookup
> !
> ip ssh time-out 120
> ip ssh authentication-retries 3
> !
> call rsvp-sync
> !
> !
> !
> !
> !
> !
> !
> !
> interface Ethernet0/0
>  ip address 172.16.1.1 255.255.0.0
>  no keepalive
>  half-duplex
> !
> interface Serial0/0
>  no ip address
>  shutdown
> !
> interface Serial0/1
>  no ip address
>  shutdown
> !
> interface Serial0/2
>  ip unnumbered Ethernet0/0
>  clockrate 2000000
> !
> interface Serial0/3
>  no ip address
>  shutdown
> !
> ip classless
> ip route 0.0.0.0 0.0.0.0 Serial0/2
> no ip http server
> !
> !
> !
> dial-peer cor custom
> !
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
>  password cisco
>  login
> line vty 5 15
>  login
> !
> no scheduler allocate
> end
> 
> RA#
> RB#
> [Resuming connection 1 to 172.16.1.1 ... ]
> 
> RA#
> RA#
> RB#172.16.1.1
> Trying 172.16.1.1 ... Open
> 
> 
> User Access Verification
> 
> Password:
> RA>en
> Password:
> RA#ping 192.168.1.1
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2
> seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 4/4/8 ms
> RA#
> RB#term mon
> % Console already monitors
> RB#
> %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0,
> changed state to
> down
> [Resuming connection 2 to 172.16.1.1 ... ]
> 
> RA#ping 192.168.1.1
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2
> seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 4/4/8 ms
> RA#ping 192.168.1.1
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2
> seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 4/5/8 ms
> RA#
> RB#conf t
> Enter configuration commands, one per line.  End with CNTL/Z.
> RB(config)#int e0
> RB(config-if)#shut
> RB(config-if)#
> %LINK-5-CHANGED: Interface Ethernet0, changed state to
> administratively
> down^Z
> RB#d
> %SYS-5-CONFIG_I: Configured from console by consoleeb ip pa det
> IP packet debugging is on (detailed)
> RB#
> [Resuming connection 2 to 172.16.1.1 ... ]
> 
> RA#
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
> sending
>     TCP src=11001, dst=23, seq=3044171494, ack=4024004928,
> win=4288 ACK
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 42,
> sending
>     TCP src=11001, dst=23, seq=3044171494, ack=4024004928,
> win=4288 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 42,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024004928, ack=3044171496,
> win=4058 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 43,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024004930, ack=3044171496,
> win=4058 ACK PSH
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
> sending
>     TCP src=11001, dst=23, seq=3044171496, ack=4024004933,
> win=4283 ACKping
> 192.168.1.1
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2
> seconds:
> !!
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 41,
> sending
>     TCP src=11001, dst=23, seq=3044171496, ack=4024004933,
> win=4283 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 56,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024004933, ack=3044171497,
> win=4057 ACK PSH
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
> sending
>     TCP src=11001, dst=23, seq=3044171497, ack=4024004949,
> win=4267 ACK
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 42,
> sending
>     TCP s!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 12/16/20 ms
> RA#rc=11001, dst=23, seq=3044171497, ack=4024004949, win=4267
> ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 42,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024004949, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 142,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024004951, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 42,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005053, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 100,
> rcvd 3
>     ICMP type=8, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 100,
> sending
>     ICMP type=0, code=0
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 41,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005055, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 100,
> rcvd 3
>     ICMP type=8, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 100,
> sending
>     ICMP type=0, code=0
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 41,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005056, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 100,
> rcvd 3
>     ICMP type=8, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 100,
> sending
>     ICMP type=0, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
> sending
>     TCP src=11001, dst=23, seq=3044171499, ack=4024005057,
> win=4159 ACK
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 41,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005057, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 100,
> rcvd 3
>     ICMP type=8, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 100,
> sending
>     ICMP type=0, code=0
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 41,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005058, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 100,
> rcvd 3
>     ICMP type=8, code=0
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 100,
> sending
>     ICMP type=0, code=0
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 41,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005059, ack=3044171499,
> win=4055 ACK PSH
> IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 118,
> rcvd 3
>     TCP src=23, dst=11001, seq=4024005060, ack=3044171499,
> win=4055 ACK PSH
> IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
> sending
>     TCP src=11001, dst=23, seq=3044171499, ack=4024005138,
> win=4078 ACK
> 
> 




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=49608&t=49347
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