doc: fix reference links

The current securing BGP and resource certification reference links lead
to a page not found. This patch fixes that by pointing to their
corresponding PDF format resources.

Signed-off-by: Carlos Goncalves <cgoncalves@redhat.com>

diff --git a/doc/user/rpki.rst b/doc/user/rpki.rst
index 2c0e5876faa1cdd1d4a4990d0c11943d56ce45bd..451df1aa4e2243871cf85235421cc5b50f2f183d 100644 (file)
--- a/doc/user/rpki.rst
+++ b/doc/user/rpki.rst
@@ -271,5 +271,5 @@ RPKI Configuration Example
    route-map rpki permit 40
    !
 
-.. [Securing-BGP] Geoff Huston, Randy Bush: Securing BGP, In: The Internet Protocol Journal, Volume 14, No. 2, 2011. <http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_14-2/142_bgp.html>
-.. [Resource-Certification] Geoff Huston: Resource Certification, In: The Internet Protocol Journal, Volume 12, No.1, 2009. <http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_12-1/121_resource.html>
+.. [Securing-BGP] Geoff Huston, Randy Bush: Securing BGP, In: The Internet Protocol Journal, Volume 14, No. 2, 2011. <https://www.cisco.com/c/dam/en_us/about/ac123/ac147/archived_issues/ipj_14-2/ipj_14-2.pdf>
+.. [Resource-Certification] Geoff Huston: Resource Certification, In: The Internet Protocol Journal, Volume 12, No.1, 2009. <https://www.cisco.com/c/dam/en_us/about/ac123/ac147/archived_issues/ipj_12-1/ipj_12-1.pdf>