diff --git a/openssh-6.6.1p1-cisco-dh-keys.patch b/openssh-6.6.1p1-cisco-dh-keys.patch
deleted file mode 100644
index 6890c05..0000000
--- a/openssh-6.6.1p1-cisco-dh-keys.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-diff -up openssh-6.8p1/compat.c.cisco-dh openssh-6.8p1/compat.c
---- openssh-6.8p1/compat.c.cisco-dh	2015-03-17 06:49:20.000000000 +0100
-+++ openssh-6.8p1/compat.c	2015-03-19 12:57:58.862606969 +0100
-@@ -167,6 +167,7 @@ compat_datafellows(const char *version)
- 					SSH_BUG_SCANNER },
- 		{ "Probe-*",
- 					SSH_BUG_PROBE },
-+		{ "Cisco-*",		SSH_BUG_MAX4096DH },
- 		{ NULL,			0 }
- 	};
- 
-diff -up openssh-6.8p1/compat.h.cisco-dh openssh-6.8p1/compat.h
---- openssh-6.8p1/compat.h.cisco-dh	2015-03-17 06:49:20.000000000 +0100
-+++ openssh-6.8p1/compat.h	2015-03-19 12:57:58.862606969 +0100
-@@ -60,6 +60,7 @@
- #define SSH_NEW_OPENSSH		0x04000000
- #define SSH_BUG_DYNAMIC_RPORT	0x08000000
- #define SSH_BUG_CURVE25519PAD	0x10000000
-+#define SSH_BUG_MAX4096DH       0x20000000
- 
- void     enable_compat13(void);
- void     enable_compat20(void);
-diff -up openssh-6.8p1/kexgexc.c.cisco-dh openssh-6.8p1/kexgexc.c
---- openssh-6.8p1/kexgexc.c.cisco-dh	2015-03-19 12:57:58.862606969 +0100
-+++ openssh-6.8p1/kexgexc.c	2015-03-19 13:11:52.320519969 +0100
-@@ -64,8 +64,27 @@ kexgex_client(struct ssh *ssh)
- 
- 	kex->min = DH_GRP_MIN;
- 	kex->max = DH_GRP_MAX;
-+
-+	/* Servers with MAX4096DH need a preferred size (nbits) <= 4096.
-+ 	 * We need to also ensure that min < nbits < max */
-+
-+	if (datafellows & SSH_BUG_MAX4096DH) {
-+		/* The largest min for these servers is 4096 */
-+		kex->min = MIN(kex->min, 4096);
-+	}
-+
- 	kex->nbits = nbits;
--	if (ssh->compat & SSH_OLD_DHGEX) {
-+	kex->nbits = MIN(nbits, kex->max);
-+	kex->nbits = MAX(nbits, kex->min);
-+
-+	if (ssh->compat & SSH_BUG_MAX4096DH) {
-+		/* Cannot have a nbits > 4096 for these servers */
-+		kex->nbits = MIN(kex->nbits, 4096);
-+		/* nbits has to be powers of two */
-+		if (kex->nbits == 3072)
-+			kex->nbits = 4096;
-+	}
-+	if (ssh->compat & SSH_OLD_DHGEX) {	/* Old GEX request */
- 		/* Old GEX request */
- 		if ((r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_REQUEST_OLD))
- 		    != 0 ||
diff --git a/openssh.spec b/openssh.spec
index a4fb7ad..a84b40d 100644
--- a/openssh.spec
+++ b/openssh.spec
@@ -193,8 +193,6 @@ Patch901: openssh-6.6p1-kuserok.patch
 Patch906: openssh-6.4p1-fromto-remote.patch
 # privsep_preauth: use SELinux context from selinux-policy (#1008580)
 Patch916: openssh-6.6.1p1-selinux-contexts.patch
-# use different values for DH for Cisco servers (#1026430)
-Patch917: openssh-6.6.1p1-cisco-dh-keys.patch
 # log via monitor in chroots without /dev/log (#2681)
 Patch918: openssh-6.6.1p1-log-in-chroot.patch
 # scp file into non-existing directory (#1142223)
@@ -428,7 +426,6 @@ popd
 %patch901 -p1 -b .kuserok
 %patch906 -p1 -b .fromto-remote
 %patch916 -p1 -b .contexts
-#%patch917 -p1 -b .cisco-dh # investigate
 %patch918 -p1 -b .log-in-chroot
 %patch919 -p1 -b .scp
 %patch920 -p1 -b .config