Hey Guys,

Centos7.3
FreeIPA 4.4.0


I'm having a strange issue with cross-realm tickets that I'm having a hard time troubleshooting.  it looks similar to an issue posted back in 2014. https://www.redhat.com/archives/freeipa-users/2014-October/msg00207.html  but this routes file seems to exist.

My Setup.

example.org = legacy (all users exist here) (transitive trust with example.com)
example.com = forest root  (transitive trust with example.com)
ipa.example.com = ipa domain (one-way trust with example.com & example.org) with route filters.
ad.example.com = domain in forest for servers/users

If I get a kerberos ticket on a non-ipa joined client with kinit  as a user @ legacy, I can use kerberos to authenticate.

If I log into an ipa-joined server on ipa.example.com as a user @ legacy and attempt to use kerberos auth to another server, I received this error:

debug3: authmethod_lookup gssapi-keyex
debug3: remaining preferred: gssapi-with-mic,keyboard-interactive
debug3: authmethod_is_enabled gssapi-keyex
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug2: we did not send a packet, disable method
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: keyboard-interactive
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug2: we sent a gssapi-with-mic packet, wait for reply
debug1: Delegating credentials
debug1: Delegating credentials
debug1: Unspecified GSS failure.  Minor code may provide more information
Illegal cross-realm ticket


Any help would be apprecaited, I checked capaths and it looks correct.

cat /var/lib/sss/pubconf/krb5.include.d/domain_realm_ipa_example_com
[domain_realm]
.EXAMPLE.COM = EXAMPLE.COM
EXAMPLE.COM = EXAMPLE.COM
.AD.EXAMPLE.COM = AD.EXAMPLE.COM
AD.EXAMPLE.COM = AD.EXAMPLE.COM
.EXAMPLE.ORG = EXAMPLE.ORG
EXAMPLE.ORG = EXAMPLE.ORG
[capaths]
EXAMPLE.COM = {
  IPA.EXAMPLE.COM = EXAMPLE.COM
}
AD.EXAMPLE.COM = {
  IPA.EXAMPLE.COM = EXAMPLE.COM
}
EXAMPLE.ORG = {
  IPA.EXAMPLE.COM = EXAMPLE.ORG
}
IPA.EXAMPLE.COM = {
  EXAMPLE.COM = EXAMPLE.COM
  AD.EXAMPLE.COM = EXAMPLE.COM
  EXAMPLE.ORG = EXAMPLE.ORG
}