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Cisco Bug: CSCut12391 - ASR1K - Ipv6 RS with unspecified address

Last Modified

Feb 13, 2018

Products (17)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
  • Cisco 7600 Series Route Switch Processor 720 with Multilayer Switch Feature Card
  • Cisco ASR 901-6CZ-FT-D Router
  • Cisco 7600 Series Route Switch Processor 720 with 10 Gigabit Ethernet Uplinks
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Known Affected Releases

15.3(3)S

Description (partial)

Symptom:
Debug from the Reproduction:

Normal RA to FF02::1

Feb 26 20:26:59.204: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) send RA to FF02::1
Feb 26 20:26:59.204: ICMPv6-ND:   Other stateful
Feb 26 20:26:59.204: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) Sending RA (1800/O) to FF02::1
Feb 26 20:26:59.204: ICMPv6-ND:   MTU = 1492
Feb 26 20:26:59.204: ICMPv6-ND:   prefix 2001:220:227:129::/64 [LA] 14400/1800
Feb 26 20:26:59.204: ICMPv6-ND: (GigabitEthernet0/1/4.10,FE80::221:D8FF:FEAA:D314) send RA to FF02::1
Feb 26 20:26:59.204: ICMPv6-ND: (GigabitEthernet0/1/4.10,FE80::221:D8FF:FEAA:D314) Sending RA (1800) to FF02::1
Feb 26 20:26:59.204: ICMPv6-ND:   MTU = 4470
asr-lab#
Feb 26 20:26:59.204: ICMPv6-ND:   prefix 2020:20:20:20::/64 [LA] 2592000/604800

Normal RA as answer to RS with specified address :

Feb 26 20:26:31.572: ICMPv6-ND: (Virtual-Access2.1,FE80::9838:CAC0:9838:CAC1) Received RS
Feb 26 20:26:31.572: ICMPv6-ND: (Virtual-Access2.1) Sending solicited RA
Feb 26 20:26:31.572: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) send RA to FE80::9838:CAC0:9838:CAC1
Feb 26 20:26:31.572: ICMPv6-ND:   Other stateful
Feb 26 20:26:31.572: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) Sending RA (1800/O) to FE80::9838:CAC0:9838:CAC1
Feb 26 20:26:31.572: ICMPv6-ND:   MTU = 1492
Feb 26 20:26:31.572: ICMPv6-ND:   prefix 2001:220:227:129::/64 [LA] 14400/1800

RS with unspecified address :

Feb 26 20:17:51.742: ICMPv6-ND: (Virtual-Access2.1,::) Received RS
Feb 26 20:17:51.742: ICMPv6-ND: (Virtual-Access2.1) Sending solicited RA
Feb 26 20:17:51.743: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) send RA to ::
Feb 26 20:17:51.743: ICMPv6-ND:   Other stateful
Feb 26 20:17:51.743: ICMPv6-ND: (Virtual-Access2.1,FE80::221:D8FF:FEAA:D300) Sending RA (1800/O) to ::
Feb 26 20:17:51.743: ICMPv6-ND:   MTU = 1492
Feb 26 20:17:51.743: ICMPv6-ND:   prefix 2001:220:227:129::/64 [LA] 14400/1800

Conditions:
Sent Router Solicitation with unspecified source address
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Bug Details Include

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