From: simon hart (simon@harttel.com)
Date: Tue Oct 04 2005 - 17:24:09 GMT-3
Manoj,
Yes you are right, but it does depend upon the wording of the question. If
IPv6 traffic should traverse the ISDN link irrespective of the availability
of the primary circuit, then multiple dialer interfaces would be the only
option. If the wording suggests that IPv6 traffic traverse the link without
mention of the availabiltiy of the primary circuit then a quick trip to the
proctor is in order :)
Simon
-----Original Message-----
From: manoj menon [mailto:manojmenon123@yahoo.com]
Sent: 04 October 2005 20:01
To: simon hart; CCIEBOB; ccielab@groupstudy.com
Subject: RE: Internetwork Expert Lab 2 - 8.5
HI Bob,
Backup Interface is not a replacement for Interesting Traffic.
Backup interface will hold ISDN down until there is a primary link
available and once the link dies, backup interface - ISDN BRI comes up. Now,
there should be an interesting traffic to kick off the ISDN - that becomes
your IPv6 traffic.
Regards,
Manoj
simon hart <simon@harttel.com> wrote:
I have not seen the answers to this lab, however you can do this by
creating
dialer interfaces on R5. Then one dialer interface will be the backup
for a
frame connection, and the other dialer interface can be used for IPv6
connectivity
Simon
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
CCIEBOB
Sent: 04 October 2005 02:44
To: ccielab@groupstudy.com
Subject: Internetwork Expert Lab 2 - 8.5
8.5. Ensure that R5 can trigger an ISDN call to R4 based on any
IPv6 traffic.
I don't think this is possible since the interface has been previously
configured for a backup interface.
Is this correct or is their a way around this?
TIA
R5#ping 2001:CC1E:1:4545::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:CC1E:1:4545::4, timeout is 2
seconds:
*Mar 5 00:10:55.820: IPv6: SAS picked source 2001:CC1E:1::5 for
2001:CC1E:1:4545::4 (Loopback0)
*Mar 5 00:10:55.820: IPV6: source 2001:CC1E:1::5 (local)
*Mar 5 00:10:55.820: dest 2001:CC1E:1:4545::4
*Mar 5 00:10:55.824: traffic class 0, flow 0x0, len 100+0, prot 58,
hops 64, Route not found.
*Mar 5 00:10:57.824: IPV6: source 2001:CC1E:1::5 (local)
*Mar 5 00:10:57.824: dest 2001:CC1E:1:4545::4
*Mar 5 00:10:57.824: traffic class 0, flow 0x0, len 100+0, prot 58,
hops 64, Route not found.
*Mar 5 00:10:59.824: IPV6: source 2001:CC1E:1::5 (local)
*Mar 5 00:10:59.824: dest 2001:CC1E:1:4545::4
*Mar 5 00:10:59.824: traffic class 0, flow 0x0, len 100+0, prot 58,
hops 64, Route not found.
*Mar 5 00:11:01.824: IPV6: source 2001:CC1E:1::5 (local)
*Mar 5 00:11:01.824: dest 2001:CC1E:1:4545::4
*Mar 5 00:11:01.824: traffic class 0, flow 0x0, len 100+0, prot 58,
hops 64, Route not found.
*Mar 5 00:11:03.824: IPV6: source 2001:CC1E:1::5 (local)
*Mar 5 00:11:03.824: dest 2001:CC1E:1:4545::4
*Mar 5 00:11:03.824: traffic class 0, flow 0x0, len 100+0, prot 58,
hops 64, Route not found.
Success rate is 0 percent (0/5)
R5#sho ipv6 route
IPv6 Routing Table - 3 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
LC 2001:CC1E:1::5/128 [0/0]
via ::, Loopback0
L FE80::/10 [0/0]
via ::, Null0
L FF00::/8 [0/0]
via ::, Null0
R5#sho ipv6 inter brief
FastEthernet0/0 [up/up]
unassigned
Serial0/0 [up/up]
unassigned
Serial0/0.1 [up/up]
unassigned
BRI0/0 [standby mode/down]
FE80::207:EFF:FEBA:E9A0
2001:CC1E:1:4545::5
BRI0/0:1 [administratively down/down]
unassigned
BRI0/0:2 [administratively down/down]
unassigned
FastEthernet0/1 [up/up]
unassigned
Virtual-Access1 [up/up]
unassigned
Loopback0 [up/up]
FE80::207:EFF:FEBA:E9A0
2001:CC1E:1::5
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