I'm not seeing the problem with the legacy network, but there is a potential security issue with needing DSA and 3DES for SSH - However others below have mentio

I'm not seeing the problem with the legacy network, but there is a potential security issue with needing DSA and 3DES for SSH - However others below have mentioned it's probably not practical to implement attacks against those on this device due to throughput limitations. ... in which case maybe it's all good?