I have a 4900M with the same problem except I am running 15.2(1)E. The latest config guide I can find for the 15 train is 15.0 which does not list DNS as being supported for VRF. However, there are some commands that make it appear it is.
Entering these commands...
ip domain-lookup source-interface FastEthernet1
ip domain-name vrf mgmtVrf mydomain.com
ip name-server vrf mgmtVrf 184.108.40.206
It still does not work...
c4900M#ping vrf mgmtVrf 220.127.116.11
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 18.104.22.168, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/11/12 ms
c4900M#ping vrf mgmtVrf google-public-dns-a.google.com
Translating "google-public-dns-a.google.com"...domain server (22.214.171.124)
% Unrecognized host or address, or protocol not running.
I can ping and TFTP from my Fa1 interface, so routing is good. Looks like DNS is not fully supported yet, or am I missing a command?
Anyone have any ideas about this? I played around with this some more and still cannot get it to work. It says it is trying to query the proper name-servers but it still fails. It appears the command "ip domain lookup source-interface FastEthernet1" doesn't actually work yet.
I checked the Cisco configuration guide for 15.0(2)SG (the latest guide I could find for version 15) and it does not list DNS as a VRF-aware service.
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