Weird. I'm just starting to play around with Juniper stuff now, and noticed pretty much the same behavior. Configured a v4 DNS server, but a lookup resulted in a V6 address trying to be used. Don't have V6 enabled anywhere, routing table was empty. Figured it was some knob I'm not familiar with in JunOS. Didn't get to wiresharking it, but similar. Would a device be silly enough to request an AAAA record out a v4 only interface? Would a DNS server ever hand out an AAAA for a v4 request (perhaps NAT64/DNS64 intercepting somewhere?)
Chuck -----Original Message----- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Chris Lane Sent: Thursday, August 16, 2012 9:41 AM To: cisco-nsp@puck.nether.net Subject: [c-nsp] IPv6 domain reply Cisco 6509 IPv4 address We do not run IPv6 currently from this site, ipv6 is not enabled on box. when i ping google.com i get the following response. ping google.com Translating "google.com"...domain server (64.17.248.2) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001:4860:4001:800::100E, timeout is 2 seconds: % No valid source address for destination Rev is: s72033-advipservicesk9_wan-mz.122-33.SXH7.bin and also for further IPV6 analysis: sh ipv6 int LI-Null0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::218:74FF:FE16:D180 No global unicast address is configured Joined group address(es): MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ND DAD is not supported ND reachable time is 30000 milliseconds Ran this by a friend yesterday who also found this strange behavior and at quick glance couldn't find any bugs related to rev. Just wondering if anyone else sees this behavior? Thanks -- //CL _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/