This was fixed upstream according to the changelog.
http://www.openssh.com/txt/release-6.9:
* ssh(1), sshd(8): cap DH-GEX group size at 4Kbits for Cisco implementations as some would fail when attempting to use group sizes >4K; bz#2209
HTH, Simon
This was fixed upstream according to the changelog.
http:// www.openssh. com/txt/ release- 6.9:
* ssh(1), sshd(8): cap DH-GEX group size at 4Kbits for Cisco
implementations as some would fail when attempting to use group
sizes >4K; bz#2209
HTH,
Simon