Exhibit 23.1


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Post-Effective
Amendment No. 3 to Registration Statement No. 333-112091 on Form S-3 of our
report dated March 14, 2005 relating to the financial statements, management's
assessment of the effectiveness of internal control over financial reporting and
the effectiveness of internal control over financial reporting, which appears in
Concord Communication's Annual Report on Form 10-K for the year ended December
31, 2004. We also consent to the references to us under the headings "Experts"
in such Registration Statement.

/s/ PricewaterhouseCoopers LLP
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PricewaterhouseCoopers LLP
Boston, Massachusetts
April 26, 2005